No more JSON numbers in AST types

Fix typos and unnecessary import paths
Cut release v0.11.1 (#936 )
2023-10-27 13:39:57 -07:00 · 2023-10-27 11:32:43 -07:00 · 2023-10-26 07:27:29 -04:00 · 2023-10-24 16:32:41 -07:00 · 2023-10-24 20:49:06 +00:00 · 2023-10-24 11:24:59 -07:00
159 changed files with 14417 additions and 5053 deletions
--- a/.github/workflows/cargo-build.yml
+++ b/.github/workflows/cargo-build.yml
@ -15,6 +15,9 @@ on:
      - '**/Cargo.lock'
      - '**/rust-toolchain.toml'
      - .github/workflows/cargo-build.yml
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 name: cargo build
 jobs:
  cargobuild:
--- a/.github/workflows/cargo-clippy.yml
+++ b/.github/workflows/cargo-clippy.yml
@ -15,6 +15,9 @@ on:
      - '**/rust-toolchain.toml'
      - '**.rs'
      - .github/workflows/cargo-build.yml
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 name: cargo clippy
 jobs:
  cargoclippy:
--- a/.github/workflows/cargo-criterion.yml
+++ b/.github/workflows/cargo-criterion.yml
@ -17,6 +17,9 @@ on:
      - .github/workflows/cargo-criterion.yml
  workflow_dispatch:
 permissions: read-all
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 name: cargo criterion
 jobs:
  cargocriterion:
--- a/.github/workflows/cargo-fmt.yml
+++ b/.github/workflows/cargo-fmt.yml
@ -18,6 +18,9 @@ on:
 permissions:
  packages: read
  contents: read
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 name: cargo fmt
 jobs:
  cargofmt:
--- a/.github/workflows/cargo-test.yml
+++ b/.github/workflows/cargo-test.yml
@ -17,6 +17,9 @@ on:
      - .github/workflows/cargo-test.yml
  workflow_dispatch:
 permissions: read-all
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 name: cargo test
 jobs:
  cargotest:
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@ -7,7 +7,14 @@ on:
      - main
  release:
    types: [published]
+  schedule:
+    - cron: '0 4 * * *'
+  # Daily at 04:00 AM UTC
+  # Will checkout the last commit from the default branch (main as of 2023-10-04)

+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 jobs:
  check-format:
    runs-on: 'ubuntu-20.04'
@ -39,8 +46,6 @@ jobs:

  build-test-web:
    runs-on: ubuntu-20.04
-    outputs:
-      version: ${{ steps.export_version.outputs.version }}
    steps:
      - uses: actions/checkout@v4

@ -63,11 +68,37 @@ jobs:

      - run: yarn test:cov

+  prepare-json-files:
+    runs-on: ubuntu-20.04  # seperate job on Ubuntu for easy string manipulations (compared to Windows)
+    outputs:
+      version: ${{ steps.export_version.outputs.version }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+          cache: 'yarn'
+          
+      - name: Set nightly version
+        if: github.event_name == 'schedule'
+        run: |
+          VERSION=$(date +'%-y.%-m.%-d') yarn bump-jsons
+          echo "$(jq --arg url 'https://dl.kittycad.io/releases/modeling-app/nightly/last_update.json' \
+            '.tauri.updater.endpoints[]=$url' src-tauri/tauri.conf.json --indent 2)" > src-tauri/tauri.conf.json
+
+      - uses: actions/upload-artifact@v3
+        if: github.event_name == 'schedule'
+        with:
+          path: |
+            package.json
+            src-tauri/tauri.conf.json
+
      - id: export_version
        run: echo "version=`cat package.json | jq -r '.version'`" >> "$GITHUB_OUTPUT"

  build-apps:
-    needs: [check-format, build-test-web, check-types]
+    needs: [check-format, build-test-web, prepare-json-files, check-types]
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
@ -75,6 +106,15 @@ jobs:
    steps:
      - uses: actions/checkout@v4

+      - uses: actions/download-artifact@v3
+
+      - name: Copy updated .json files
+        if: github.event_name == 'schedule'
+        run: |
+          ls -l artifact
+          cp artifact/package.json package.json
+          cp artifact/src-tauri/tauri.conf.json src-tauri/tauri.conf.json
+
      - name: install ubuntu system dependencies
        if: matrix.os == 'ubuntu-20.04'
        run: |
@ -153,6 +193,7 @@ jobs:
          APPLE_SIGNING_IDENTITY: ${{ secrets.APPLE_SIGNING_IDENTITY }}
          APPLE_ID: ${{ secrets.APPLE_ID }}
          APPLE_PASSWORD: ${{ secrets.APPLE_PASSWORD }}
+          APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
        with:
          args: ${{ matrix.os == 'macos-latest' && '--target universal-apple-darwin' || '' }}

@ -162,12 +203,14 @@ jobs:

  publish-apps-release:
    runs-on: ubuntu-20.04
-    if: github.event_name == 'release'
-    needs: [build-test-web, build-apps]
+    if: ${{ github.event_name == 'release' || github.event_name == 'schedule' }}
+    needs: [build-test-web, prepare-json-files, build-apps]
    env:
-      VERSION_NO_V: ${{ needs.build-test-web.outputs.version }}
-      PUB_DATE: ${{ github.event.release.created_at }}
-      NOTES: ${{ github.event.release.body }}
+      VERSION_NO_V: ${{ needs.prepare-json-files.outputs.version }}
+      VERSION: ${{ github.event_name == 'release' && format('v{0}', needs.prepare-json-files.outputs.version) || needs.prepare-json-files.outputs.version }}
+      PUB_DATE: ${{ github.event_name == 'release' && github.event.release.created_at || github.event.repository.updated_at }}
+      NOTES: ${{ github.event_name == 'release' && github.event.release.body || format('Nightly build, commit {0}', github.sha) }}
+      BUCKET_DIR: ${{ github.event_name == 'release' && 'dl.kittycad.io/releases/modeling-app' || 'dl.kittycad.io/releases/modeling-app/nightly' }}
    steps:
      - uses: actions/download-artifact@v3

@ -177,9 +220,9 @@ jobs:
          DARWIN_SIG=`cat artifact/macos/*.app.tar.gz.sig`
          LINUX_SIG=`cat artifact/appimage/*.AppImage.tar.gz.sig`
          WINDOWS_SIG=`cat artifact/msi/*.msi.zip.sig`
-          RELEASE_DIR=https://dl.kittycad.io/releases/modeling-app/v${VERSION_NO_V}
+          RELEASE_DIR=https://${BUCKET_DIR}/${VERSION}
          jq --null-input \
-            --arg version "v${VERSION_NO_V}" \
+            --arg version "${VERSION}" \
            --arg pub_date "${PUB_DATE}" \
            --arg notes "${NOTES}" \
            --arg darwin_sig "$DARWIN_SIG" \
@ -215,9 +258,9 @@ jobs:

      - name: Generate the download static endpoint
        run: |
-          RELEASE_DIR=https://dl.kittycad.io/releases/modeling-app/v${VERSION_NO_V}
+          RELEASE_DIR=https://${BUCKET_DIR}/${VERSION}
          jq --null-input \
-            --arg version "v${VERSION_NO_V}" \
+            --arg version "${VERSION}" \
            --arg pub_date "${PUB_DATE}" \
            --arg notes "${NOTES}" \
            --arg darwin_url "$RELEASE_DIR/dmg/KittyCAD%20Modeling_${VERSION_NO_V}_universal.dmg" \
@ -257,21 +300,22 @@ jobs:
          path: artifact
          glob: '*/*itty*'
          parent: false
-          destination: dl.kittycad.io/releases/modeling-app/v${{ env.VERSION_NO_V }}
+          destination: ${{ env.BUCKET_DIR }}/${{ env.VERSION }}

      - name: Upload update endpoint to public bucket
        uses: google-github-actions/upload-cloud-storage@v1.0.3
        with:
          path: last_update.json
-          destination: dl.kittycad.io/releases/modeling-app
+          destination: ${{ env.BUCKET_DIR }}

      - name: Upload download endpoint to public bucket
        uses: google-github-actions/upload-cloud-storage@v1.0.3
        with:
          path: last_download.json
-          destination: dl.kittycad.io/releases/modeling-app
+          destination: ${{ env.BUCKET_DIR }}

      - name: Upload release files to Github
+        if: ${{ github.event_name == 'release' }}
        uses: softprops/action-gh-release@v1
        with:
          files: artifact/*/*itty*
--- a/.prettierignore
+++ b/.prettierignore
@ -7,3 +7,6 @@ coverage
 target
 src/wasm-lib/pkg
 src/wasm-lib/kcl/bindings
+
+# XState generated files
+src/machines/modelingMachine.typegen.ts
--- a/21
+++ b/21
@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2023 The KittyCAD Authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/README.md
+++ b/README.md
@ -29,6 +29,7 @@ The 3D view in KittyCAD Modeling App is just a video stream from our hosted geom
  - [React](https://react.dev/)
  - [Headless UI](https://headlessui.com/)
  - [TailwindCSS](https://tailwindcss.com/)
+  - [XState](https://xstate.js.org/)
 - Networking
  - WebSockets (via [KittyCAD TS client](https://github.com/KittyCAD/kittycad.ts))
 - Code Editor
@ -56,7 +57,7 @@ yarn install
 followed by:

 ```
-yarn build:wasm
+yarn build:wasm-dev
 ```

 That will build the WASM binary and put in the `public` dir (though gitignored)
@ -88,9 +89,16 @@ yarn test

 Which will run our suite of [Vitest unit](https://vitest.dev/) and [React Testing Library E2E](https://testing-library.com/docs/react-testing-library/intro/) tests, in interactive mode by default.

+For running the rust (not tauri rust though) only, you can
+```bash
+cd src/wasm-lib
+cargo test
+```
+but you will need to have install ffmpeg prior to.
+
 ## Tauri

-To spin up up tauri dev, `yarn install` and `yarn build:wasm` need to have been done before hand then
+To spin up up tauri dev, `yarn install` and `yarn build:wasm-dev` need to have been done before hand then

 ```
 yarn tauri dev
--- a/docs/kcl/std.json
+++ b/docs/kcl/std.json
--- a/docs/kcl/std.md
+++ b/docs/kcl/std.md
--- a/package.json
+++ b/package.json
@ -1,6 +1,6 @@
 {
  "name": "untitled-app",
-  "version": "0.9.3",
+  "version": "0.11.1",
  "private": true,
  "dependencies": {
    "@codemirror/autocomplete": "^6.9.0",
@ -10,13 +10,13 @@
    "@fortawesome/react-fontawesome": "^0.2.0",
    "@headlessui/react": "^1.7.13",
    "@headlessui/tailwindcss": "^0.2.0",
-    "@kittycad/lib": "^0.0.40",
+    "@kittycad/lib": "^0.0.45",
    "@lezer/javascript": "^1.4.7",
    "@open-rpc/client-js": "^1.8.1",
    "@react-hook/resize-observer": "^1.2.6",
    "@replit/codemirror-interact": "^6.3.0",
    "@sentry/react": "^7.65.0",
-    "@tauri-apps/api": "^1.3.0",
+    "@tauri-apps/api": "^1.5.0",
    "@testing-library/jest-dom": "^5.14.1",
    "@testing-library/react": "^13.0.0",
    "@testing-library/user-event": "^13.2.1",
@ -25,6 +25,7 @@
    "@types/react": "^18.0.0",
    "@types/react-dom": "^18.0.0",
    "@uiw/react-codemirror": "^4.21.13",
+    "@xstate/inspect": "^0.8.0",
    "@xstate/react": "^3.2.2",
    "crypto-js": "^4.1.1",
    "debounce-promise": "^3.1.2",
@ -32,7 +33,7 @@
    "fuse.js": "^6.6.2",
    "http-server": "^14.1.1",
    "json-rpc-2.0": "^1.6.0",
-    "re-resizable": "^6.9.9",
+    "re-resizable": "^6.9.11",
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-hot-toast": "^2.4.1",
@ -72,6 +73,7 @@
    "simpleserver": "yarn pretest && http-server ./public --cors -p 3000",
    "fmt": "prettier --write ./src",
    "fmt-check": "prettier --check ./src",
+    "build:wasm-dev": "(cd src/wasm-lib && wasm-pack build --dev --target web --out-dir pkg && cargo test -p kcl-lib export_bindings) && cp src/wasm-lib/pkg/wasm_lib_bg.wasm public && yarn fmt",
    "build:wasm": "(cd src/wasm-lib && wasm-pack build --target web --out-dir pkg && cargo test -p kcl-lib export_bindings) && cp src/wasm-lib/pkg/wasm_lib_bg.wasm public && yarn fmt",
    "build:wasm-clean": "yarn wasm-prep && yarn build:wasm",
    "remove-importmeta": "sed -i 's/import.meta.url/window.location.origin/g' \"./src/wasm-lib/pkg/wasm_lib.js\"; sed -i '' 's/import.meta.url/window.location.origin/g' \"./src/wasm-lib/pkg/wasm_lib.js\" || echo \"sed for both mac and linux\"",
@ -100,7 +102,7 @@
  "devDependencies": {
    "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
    "@babel/preset-env": "^7.22.9",
-    "@tauri-apps/cli": "^1.3.1",
+    "@tauri-apps/cli": "^1.5.0",
    "@types/crypto-js": "^4.1.1",
    "@types/debounce-promise": "^3.1.6",
    "@types/isomorphic-fetch": "^0.0.36",
--- a/public/Icon/Icon/Projects/Create
+++ b/public/Icon/Icon/Projects/Create
@ -0,0 +1,3 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M4 3H4.5H11H11.2071L11.3536 3.14645L15.8536 7.64646L16 7.7929V8.00001V11.3773C15.6992 11.1362 15.3628 10.9376 15 10.7908V8.50001H11H10.5V8.00001V4H5V16H9.79076C9.93763 16.3628 10.1362 16.6992 10.3773 17H4.5H4V16.5V3.5V3ZM11.5 4.70711L14.2929 7.50001H11.5V4.70711ZM13 12V14H11V15H13V17H14V15H16V14H14V12H13Z" fill="black"/>
+</svg>
--- a/public/Icon/Icon/Projects/Create
+++ b/public/Icon/Icon/Projects/Create
@ -0,0 +1,3 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M3.5 3.5H4H7H7.16667L7.3 3.6L9.16667 5H16H16.5V5.5V7.5V10.3773C16.1992 10.1362 15.8628 9.93763 15.5 9.79076V8H4.5V15.5H10.5351C10.7529 15.8764 11.0302 16.2141 11.3542 16.5H4H3.5V16V7.5V4V3.5ZM4.5 4.5V7H15.5V6H9H8.83333L8.7 5.9L6.83333 4.5H4.5ZM13.5 11V13H11.5V14H13.5V16H14.5V14H16.5V13H14.5V11H13.5Z" fill="black"/>
+</svg>
--- a/public/Icon/Icon/Projects/File.svg
+++ b/public/Icon/Icon/Projects/File.svg
@ -0,0 +1,3 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M11 3.5H4.5V16.5H15.5V8.00001M11 3.5L15.5 8.00001M11 3.5V8.00001H15.5" stroke="black"/>
+</svg>
--- a/public/kcl-icon.svg
+++ b/public/kcl-icon.svg
@ -0,0 +1,3 @@
+<svg width="40" height="40" viewBox="0 0 40 40" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M40 0H0V40H40V0ZM7.34715 27.2143V15.6577L2.976 15.987V36.7949H7.34715V32.0645L8.00582 31.5256C8.24533 31.326 8.47487 31.1264 8.69442 30.9268L12.1075 36.7949H17.0475C16.1893 35.3978 15.311 33.9906 14.4128 32.5735C13.5346 31.1563 12.6664 29.7392 11.8081 28.3221L15.8499 24.9389C15.4308 24.4399 15.0017 23.931 14.5625 23.412L13.3051 21.8552L7.34715 27.2143ZM22.2581 26.6754C22.8769 25.9169 23.6753 25.5377 24.6533 25.5377C25.272 25.5377 25.8309 25.6175 26.3299 25.7772C26.8289 25.9169 27.4177 26.1465 28.0963 26.4658L29.3238 23.3521C28.5853 22.7933 27.7371 22.4041 26.779 22.1845C25.8409 21.9649 25.0625 21.8552 24.4437 21.8552C22.0885 21.8552 20.2223 22.5537 18.845 23.9509C17.4878 25.3281 16.8092 27.1944 16.8092 29.5496C16.8092 31.9048 17.4878 33.7611 18.845 35.1183C20.2223 36.4756 22.0885 37.1542 24.4437 37.1542C25.0625 37.1542 25.8509 37.0444 26.8089 36.8249C27.767 36.6053 28.6053 36.2161 29.3238 35.6572L28.0963 32.5435C27.4177 32.8629 26.8289 33.0924 26.3299 33.2321C25.8309 33.3718 25.272 33.4417 24.6533 33.4417C23.6753 33.4417 22.8769 33.0924 22.2581 32.3938C21.6594 31.6753 21.36 30.7272 21.36 29.5496C21.36 28.372 21.6594 27.4139 22.2581 26.6754ZM36.2796 36.7949V15.6577L31.9085 15.987V36.7949H36.2796Z" fill="#D0FF00"/>
+</svg>
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@ -84,7 +84,7 @@ dependencies = [
 "tauri-build",
 "tauri-plugin-fs-extra",
 "tokio",
- "toml 0.8.1",
+ "toml 0.8.2",
 ]

 [[package]]
@ -122,6 +122,12 @@ dependencies = [
 "system-deps 6.1.0",
 ]

+[[package]]
+name = "atomic"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c59bdb34bc650a32731b31bd8f0829cc15d24a708ee31559e0bb34f2bc320cba"
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@ -1658,9 +1664,9 @@ dependencies = [

 [[package]]
 name = "kittycad"
-version = "0.2.28"
+version = "0.2.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "35b2f9302648dbb06fd7121687f9505fc3179eba84111a06d76b246e3158f5dc"
+checksum = "633a728fb7209b398b7fa5b67460cb7f3cdb268c6b2a9e81967dda464cfbb5c1"
 dependencies = [
 "anyhow",
 "async-trait",
@ -2833,9 +2839,9 @@ checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da"

 [[package]]
 name = "reqwest"
-version = "0.11.20"
+version = "0.11.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e9ad3fe7488d7e34558a2033d45a0c90b72d97b4f80705666fea71472e2e6a1"
+checksum = "046cd98826c46c2ac8ddecae268eb5c2e58628688a5fc7a2643704a73faba95b"
 dependencies = [
 "base64 0.21.2",
 "bytes",
@ -2862,6 +2868,7 @@ dependencies = [
 "serde",
 "serde_json",
 "serde_urlencoded",
+ "system-configuration",
 "tokio",
 "tokio-native-tls",
 "tokio-rustls",
@ -3011,9 +3018,9 @@ dependencies = [

 [[package]]
 name = "rustix"
-version = "0.37.19"
+version = "0.37.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acf8729d8542766f1b2cf77eb034d52f40d375bb8b615d0b147089946e16613d"
+checksum = "84f3f8f960ed3b5a59055428714943298bf3fa2d4a1d53135084e0544829d995"
 dependencies = [
 "bitflags 1.3.2",
 "errno",
@ -3208,9 +3215,9 @@ dependencies = [

 [[package]]
 name = "serde"
-version = "1.0.188"
+version = "1.0.189"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf9e0fcba69a370eed61bcf2b728575f726b50b55cba78064753d708ddc7549e"
+checksum = "8e422a44e74ad4001bdc8eede9a4570ab52f71190e9c076d14369f38b9200537"
 dependencies = [
 "serde_derive",
 ]
@ -3226,9 +3233,9 @@ dependencies = [

 [[package]]
 name = "serde_derive"
-version = "1.0.188"
+version = "1.0.189"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4eca7ac642d82aa35b60049a6eccb4be6be75e599bd2e9adb5f875a737654af2"
+checksum = "1e48d1f918009ce3145511378cf68d613e3b3d9137d67272562080d68a2b32d5"
 dependencies = [
 "proc-macro2",
 "quote",
@ -3600,6 +3607,27 @@ dependencies = [
 "windows-sys 0.45.0",
 ]

+[[package]]
+name = "system-configuration"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba3a3adc5c275d719af8cb4272ea1c4a6d668a777f37e115f6d11ddbc1c8e0e7"
+dependencies = [
+ "bitflags 1.3.2",
+ "core-foundation",
+ "system-configuration-sys",
+]
+
+[[package]]
+name = "system-configuration-sys"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75fb188eb626b924683e3b95e3a48e63551fcfb51949de2f06a9d91dbee93c9"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "system-deps"
 version = "5.0.0"
@ -3712,9 +3740,9 @@ dependencies = [

 [[package]]
 name = "tauri"
-version = "1.5.0"
+version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72aee3277d0a0df01472cc704ab5934a51a1f25348838df17bfb3c5cb727880c"
+checksum = "9bfe673cf125ef364d6f56b15e8ce7537d9ca7e4dae1cf6fbbdeed2e024db3d9"
 dependencies = [
 "anyhow",
 "base64 0.21.2",
@ -3768,9 +3796,9 @@ dependencies = [

 [[package]]
 name = "tauri-build"
-version = "1.4.1"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a62b3327886e7ef2978adc668432f1cc53f14e1d46e7ae04f730f4d48584623"
+checksum = "defbfc551bd38ab997e5f8e458f87396d2559d05ce32095076ad6c30f7fc5f9c"
 dependencies = [
 "anyhow",
 "cargo_toml",
@ -3828,7 +3856,7 @@ dependencies = [
 [[package]]
 name = "tauri-plugin-fs-extra"
 version = "0.0.0"
-source = "git+https://github.com/tauri-apps/plugins-workspace?branch=v1#9af4c3727c0d9c7a88b27cb80a6482a5aa461fc5"
+source = "git+https://github.com/tauri-apps/plugins-workspace?branch=v1#9b20f28d747f6ec3ba5a80bfcd5edc1d573b4c90"
 dependencies = [
 "log",
 "serde",
@ -3927,7 +3955,7 @@ dependencies = [
 "cfg-if",
 "fastrand",
 "redox_syscall 0.3.5",
- "rustix 0.37.19",
+ "rustix 0.37.26",
 "windows-sys 0.45.0",
 ]

@ -4007,9 +4035,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"

 [[package]]
 name = "tokio"
-version = "1.32.0"
+version = "1.33.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17ed6077ed6cd6c74735e21f37eb16dc3935f96878b1fe961074089cc80893f9"
+checksum = "4f38200e3ef7995e5ef13baec2f432a6da0aa9ac495b2c0e8f3b7eec2c92d653"
 dependencies = [
 "backtrace",
 "bytes",
@ -4078,14 +4106,14 @@ dependencies = [

 [[package]]
 name = "toml"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bc1433177506450fe920e46a4f9812d0c211f5dd556da10e731a0a3dfa151f0"
+checksum = "185d8ab0dfbb35cf1399a6344d8484209c088f75f8f68230da55d48d95d43e3d"
 dependencies = [
 "serde",
 "serde_spanned",
 "toml_datetime",
- "toml_edit 0.20.1",
+ "toml_edit 0.20.2",
 ]

 [[package]]
@ -4112,9 +4140,9 @@ dependencies = [

 [[package]]
 name = "toml_edit"
-version = "0.20.1"
+version = "0.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca676d9ba1a322c1b64eb8045a5ec5c0cfb0c9d08e15e9ff622589ad5221c8fe"
+checksum = "396e4d48bbb2b7554c944bde63101b5ae446cff6ec4a24227428f15eb72ef338"
 dependencies = [
 "indexmap 2.0.0",
 "serde",
@ -4292,6 +4320,7 @@ version = "1.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "345444e32442451b267fc254ae85a209c64be56d2890e601a0c37ff0c3c5ecd2"
 dependencies = [
+ "atomic",
 "getrandom 0.2.9",
 "serde",
 ]
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@ -12,18 +12,18 @@ rust-version = "1.60"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [build-dependencies]
-tauri-build = { version = "1.4.1", features = [] }
+tauri-build = { version = "1.5.0", features = [] }

 [dependencies]
 anyhow = "1"
-kittycad = "0.2.28"
+kittycad = "0.2.33"
 oauth2 = "4.4.2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-tauri = { version = "1.5.0", features = [ "os-all", "dialog-all", "fs-all", "http-request", "path-all", "shell-open", "shell-open-api", "updater", "devtools"] }
+tauri = { version = "1.5.2", features = [ "os-all", "dialog-all", "fs-all", "http-request", "path-all", "shell-open", "shell-open-api", "updater", "devtools"] }
 tauri-plugin-fs-extra = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "v1" }
-tokio = { version = "1.32.0", features = ["time"] }
-toml = "0.8.1"
+tokio = { version = "1.33.0", features = ["time"] }
+toml = "0.8.2"

 [features]
 # this feature is used for production builds or when `devPath` points to the filesystem and the built-in dev server is disabled.
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@ -8,7 +8,7 @@
  },
  "package": {
    "productName": "kittycad-modeling",
-    "version": "0.9.3"
+    "version": "0.11.1"
  },
  "tauri": {
    "allowlist": {
--- a/src/App.test.tsx
+++ b/src/App.test.tsx
@ -1,9 +1,16 @@
 import { render, screen } from '@testing-library/react'
 import { App } from './App'
 import { describe, test, vi } from 'vitest'
-import { BrowserRouter } from 'react-router-dom'
+import {
+  Route,
+  RouterProvider,
+  createMemoryRouter,
+  createRoutesFromElements,
+} from 'react-router-dom'
 import { GlobalStateProvider } from './components/GlobalStateProvider'
 import CommandBarProvider from 'components/CommandBar'
+import ModelingMachineProvider from 'components/ModelingMachineProvider'
+import { BROWSER_FILE_NAME } from 'Router'

 let listener: ((rect: any) => void) | undefined = undefined
 ;(global as any).ResizeObserver = class ResizeObserver {
@ -24,7 +31,7 @@ describe('App tests', () => {
      >
      return {
        ...actual,
-        useParams: () => ({ id: 'new' }),
+        useParams: () => ({ id: BROWSER_FILE_NAME }),
        useLoaderData: () => ({ code: null }),
      }
    })
@ -41,12 +48,26 @@ describe('App tests', () => {
 })

 function TestWrap({ children }: { children: React.ReactNode }) {
-  // wrap in router and xState context
-  return (
-    <BrowserRouter>
-      <CommandBarProvider>
-        <GlobalStateProvider>{children}</GlobalStateProvider>
-      </CommandBarProvider>
-    </BrowserRouter>
+  // We have to use a memory router in the testing environment,
+  // and we have to use the createMemoryRouter function instead of <MemoryRouter /> as of react-router v6.4:
+  // https://reactrouter.com/en/6.16.0/routers/picking-a-router#using-v64-data-apis
+  const router = createMemoryRouter(
+    createRoutesFromElements(
+      <Route
+        path="/file/:id"
+        element={
+          <CommandBarProvider>
+            <GlobalStateProvider>
+              <ModelingMachineProvider>{children}</ModelingMachineProvider>
+            </GlobalStateProvider>
+          </CommandBarProvider>
+        }
+      />
+    ),
+    {
+      initialEntries: ['/file/new'],
+      initialIndex: 0,
+    }
  )
+  return <RouterProvider router={router} />
 }
--- a/src/App.tsx
+++ b/src/App.tsx
@ -1,4 +1,4 @@
-import { useRef, useEffect, useCallback, MouseEventHandler } from 'react'
+import { useEffect, useCallback, MouseEventHandler } from 'react'
 import { DebugPanel } from './components/DebugPanel'
 import { v4 as uuidv4 } from 'uuid'
 import { PaneType, useStore } from './useStore'
@ -29,45 +29,33 @@ import { CameraDragInteractionType_type } from '@kittycad/lib/dist/types/src/mod
 import { CodeMenu } from 'components/CodeMenu'
 import { TextEditor } from 'components/TextEditor'
 import { Themes, getSystemTheme } from 'lib/theme'
-import { useSetupEngineManager } from 'hooks/useSetupEngineManager'
 import { useEngineConnectionSubscriptions } from 'hooks/useEngineConnectionSubscriptions'
 import { engineCommandManager } from './lang/std/engineConnection'
+import { kclManager } from 'lang/KclSinglton'
+import { useModelingContext } from 'hooks/useModelingContext'

 export function App() {
-  const { code: loadedCode, project } = useLoaderData() as IndexLoaderData
+  const { code: loadedCode, project, file } = useLoaderData() as IndexLoaderData

-  const streamRef = useRef<HTMLDivElement>(null)
  useHotKeyListener()
  const {
-    setCode,
    buttonDownInStream,
    openPanes,
    setOpenPanes,
    didDragInStream,
    streamDimensions,
-    guiMode,
-    setGuiMode,
-    executeAst,
  } = useStore((s) => ({
-    guiMode: s.guiMode,
-    setGuiMode: s.setGuiMode,
-    setCode: s.setCode,
    buttonDownInStream: s.buttonDownInStream,
    openPanes: s.openPanes,
    setOpenPanes: s.setOpenPanes,
    didDragInStream: s.didDragInStream,
    streamDimensions: s.streamDimensions,
-    executeAst: s.executeAst,
  }))

-  const {
-    auth: {
-      context: { token },
-    },
-    settings: {
-      context: { showDebugPanel, onboardingStatus, cameraControls, theme },
-    },
-  } = useGlobalStateContext()
+  const { settings } = useGlobalStateContext()
+  const { showDebugPanel, onboardingStatus, cameraControls, theme } =
+    settings?.context || {}
+  const { state, send } = useModelingContext()

  const editorTheme = theme === Themes.System ? getSystemTheme() : theme

@ -84,50 +72,7 @@ export function App() {
  useHotkeys('shift + l', () => togglePane('logs'))
  useHotkeys('shift + e', () => togglePane('kclErrors'))
  useHotkeys('shift + d', () => togglePane('debug'))
-  useHotkeys('esc', () => {
-    if (guiMode.mode === 'sketch') {
-      if (guiMode.sketchMode === 'selectFace') return
-      if (guiMode.sketchMode === 'sketchEdit') {
-        // TODO: share this with Toolbar's "Exit sketch" button
-        // exiting sketch should be done consistently across all exits
-        engineCommandManager.sendSceneCommand({
-          type: 'modeling_cmd_req',
-          cmd_id: uuidv4(),
-          cmd: { type: 'edit_mode_exit' },
-        })
-        engineCommandManager.sendSceneCommand({
-          type: 'modeling_cmd_req',
-          cmd_id: uuidv4(),
-          cmd: { type: 'default_camera_disable_sketch_mode' },
-        })
-        setGuiMode({ mode: 'default' })
-        // this is necessary to get the UI back into a consistent
-        // state right now, hopefully won't need to rerender
-        // when exiting sketch mode in the future
-        executeAst()
-      } else {
-        engineCommandManager.sendSceneCommand({
-          type: 'modeling_cmd_req',
-          cmd_id: uuidv4(),
-          cmd: {
-            type: 'set_tool',
-            tool: 'select',
-          },
-        })
-        setGuiMode({
-          mode: 'sketch',
-          sketchMode: 'sketchEdit',
-          rotation: guiMode.rotation,
-          position: guiMode.position,
-          pathToNode: guiMode.pathToNode,
-          pathId: guiMode.pathId,
-          // todo: ...guiMod is adding isTooltip: true, will probably just fix with xstate migtaion
-        })
-      }
-    } else {
-      setGuiMode({ mode: 'default' })
-    }
-  })
+  useHotkeys('esc', () => send('Cancel'))

  const paneOpacity = [onboardingPaths.CAMERA, onboardingPaths.STREAMING].some(
    (p) => p === onboardingStatus
@ -141,17 +86,22 @@ export function App() {
  // on mount, and overwrite any locally-stored code
  useEffect(() => {
    if (isTauri() && loadedCode !== null) {
-      setCode(loadedCode)
+      if (kclManager.engineCommandManager.engineConnection?.isReady()) {
+        // If the engine is ready, promptly execute the loaded code
+        kclManager.setCodeAndExecute(loadedCode)
+      } else {
+        // Otherwise, just set the code and wait for the connection to complete
+        kclManager.setCode(loadedCode)
+      }
    }
    return () => {
      // Clear code on unmount if in desktop app
      if (isTauri()) {
-        setCode('')
+        kclManager.setCode('')
      }
    }
-  }, [loadedCode, setCode])
+  }, [loadedCode])

-  useSetupEngineManager(streamRef, token)
  useEngineConnectionSubscriptions()

  const debounceSocketSend = throttle<EngineCommand>((message) => {
@ -169,10 +119,7 @@ export function App() {

    const newCmdId = uuidv4()
    if (buttonDownInStream === undefined) {
-      if (
-        guiMode.mode === 'sketch' &&
-        guiMode.sketchMode === ('sketch_line' as any)
-      ) {
+      if (state.matches('Sketch.Line Tool')) {
        debounceSocketSend({
          type: 'modeling_cmd_req',
          cmd_id: newCmdId,
@ -192,7 +139,7 @@ export function App() {
        })
      }
    } else {
-      if (guiMode.mode === 'sketch' && guiMode.sketchMode === ('move' as any)) {
+      if (state.matches('Sketch.Move Tool')) {
        debounceSocketSend({
          type: 'modeling_cmd_req',
          cmd_id: newCmdId,
@ -232,9 +179,8 @@ export function App() {

  return (
    <div
-      className="h-screen overflow-hidden relative flex flex-col cursor-pointer select-none"
+      className="relative h-full flex flex-col"
      onMouseMove={handleMouseMove}
-      ref={streamRef}
    >
      <AppHeader
        className={
@ -242,7 +188,7 @@ export function App() {
          paneOpacity +
          (buttonDownInStream ? ' pointer-events-none' : '')
        }
-        project={project}
+        project={{ project, file }}
        enableMenu={true}
      />
      <ModalContainer />
--- a/src/Auth.tsx
+++ b/src/Auth.tsx
@ -3,10 +3,8 @@ import { useGlobalStateContext } from 'hooks/useGlobalStateContext'

 // Wrapper around protected routes, used in src/Router.tsx
 export const Auth = ({ children }: React.PropsWithChildren) => {
-  const {
-    auth: { state },
-  } = useGlobalStateContext()
-  const isLoggingIn = state.matches('checkIfLoggedIn')
+  const { auth } = useGlobalStateContext()
+  const isLoggingIn = auth?.state.matches('checkIfLoggedIn')

  return isLoggingIn ? (
    <Loading>Loading KittyCAD Modeling App...</Loading>
--- a/src/Router.tsx
+++ b/src/Router.tsx
@ -31,6 +31,7 @@ import {
 } from './lib/tauriFS'
 import { metadata, type Metadata } from 'tauri-plugin-fs-extra-api'
 import DownloadAppBanner from './components/DownloadAppBanner'
+import { WasmErrBanner } from './components/WasmErrBanner'
 import { GlobalStateProvider } from './components/GlobalStateProvider'
 import {
  SETTINGS_PERSIST_KEY,
@ -40,6 +41,10 @@ import { ContextFrom } from 'xstate'
 import CommandBarProvider from 'components/CommandBar'
 import { TEST, VITE_KC_SENTRY_DSN } from './env'
 import * as Sentry from '@sentry/react'
+import ModelingMachineProvider from 'components/ModelingMachineProvider'
+import { KclContextProvider } from 'lang/KclSinglton'
+import FileMachineProvider from 'components/FileMachineProvider'
+import { sep } from '@tauri-apps/api/path'

 if (VITE_KC_SENTRY_DSN && !TEST) {
  Sentry.init({
@ -94,13 +99,16 @@ export const paths = {
  ) as typeof onboardingPaths,
 }

+export const BROWSER_FILE_NAME = 'new'
+
 export type IndexLoaderData = {
  code: string | null
  project?: ProjectWithEntryPointMetadata
+  file?: FileEntry
 }

 export type ProjectWithEntryPointMetadata = FileEntry & {
-  entrypoint_metadata: Metadata
+  entrypointMetadata: Metadata
 }
 export type HomeLoaderData = {
  projects: ProjectWithEntryPointMetadata[]
@ -129,15 +137,24 @@ const router = createBrowserRouter(
    {
      path: paths.INDEX,
      loader: () =>
-        isTauri() ? redirect(paths.HOME) : redirect(paths.FILE + '/new'),
+        isTauri()
+          ? redirect(paths.HOME)
+          : redirect(paths.FILE + '/' + BROWSER_FILE_NAME),
      errorElement: <ErrorPage />,
    },
    {
      path: paths.FILE + '/:id',
      element: (
        <Auth>
-          <Outlet />
-          <App />
+          <FileMachineProvider>
+            <KclContextProvider>
+              <ModelingMachineProvider>
+                <Outlet />
+                <App />
+              </ModelingMachineProvider>
+              <WasmErrBanner />
+            </KclContextProvider>
+          </FileMachineProvider>
          {!isTauri() && import.meta.env.PROD && <DownloadAppBanner />}
        </Auth>
      ),
@ -167,21 +184,41 @@ const router = createBrowserRouter(
          )
        }

-        if (params.id && params.id !== 'new') {
+        const defaultDir = persistedSettings.defaultDirectory || ''
+
+        if (params.id && params.id !== BROWSER_FILE_NAME) {
+          const decodedId = decodeURIComponent(params.id)
+          const projectAndFile = decodedId.replace(defaultDir + sep, '')
+          const firstSlashIndex = projectAndFile.indexOf(sep)
+          const projectName = projectAndFile.slice(0, firstSlashIndex)
+          const projectPath = defaultDir + sep + projectName
+          const currentFileName = projectAndFile.slice(firstSlashIndex + 1)
+
+          if (firstSlashIndex === -1 || !currentFileName)
+            return redirect(
+              `${paths.FILE}/${encodeURIComponent(
+                `${params.id}${sep}${PROJECT_ENTRYPOINT}`
+              )}`
+            )
+
          // Note that PROJECT_ENTRYPOINT is hardcoded until we support multiple files
-          const code = await readTextFile(params.id + '/' + PROJECT_ENTRYPOINT)
-          const entrypoint_metadata = await metadata(
-            params.id + '/' + PROJECT_ENTRYPOINT
+          const code = await readTextFile(decodedId)
+          const entrypointMetadata = await metadata(
+            projectPath + sep + PROJECT_ENTRYPOINT
          )
-          const children = await readDir(params.id)
+          const children = await readDir(projectPath, { recursive: true })

          return {
            code,
            project: {
-              name: params.id.slice(params.id.lastIndexOf('/') + 1),
-              path: params.id,
+              name: projectName,
+              path: projectPath,
              children,
-              entrypoint_metadata,
+              entrypointMetadata,
+            },
+            file: {
+              name: currentFileName,
+              path: params.id,
            },
          }
        }
@ -212,7 +249,7 @@ const router = createBrowserRouter(
      ),
      loader: async () => {
        if (!isTauri()) {
-          return redirect(paths.FILE + '/new')
+          return redirect(paths.FILE + '/' + BROWSER_FILE_NAME)
        }
        const fetchedStorage = localStorage?.getItem(SETTINGS_PERSIST_KEY)
        const persistedSettings = JSON.parse(fetchedStorage || '{}') as Partial<
@ -234,9 +271,9 @@ const router = createBrowserRouter(
          isProjectDirectory
        )
        const projects = await Promise.all(
-          projectsNoMeta.map(async (p) => ({
-            entrypoint_metadata: await metadata(
-              p.path + '/' + PROJECT_ENTRYPOINT
+          projectsNoMeta.map(async (p: FileEntry) => ({
+            entrypointMetadata: await metadata(
+              p.path + sep + PROJECT_ENTRYPOINT
            ),
            ...p,
          }))
--- a/src/Toolbar.tsx
+++ b/src/Toolbar.tsx
@ -1,24 +1,13 @@
-import { useStore, toolTips, ToolTip } from './useStore'
-import { extrudeSketch, sketchOnExtrudedFace } from './lang/modifyAst'
-import { getNodePathFromSourceRange } from './lang/queryAst'
-import { HorzVert } from './components/Toolbar/HorzVert'
-import { RemoveConstrainingValues } from './components/Toolbar/RemoveConstrainingValues'
-import { EqualLength } from './components/Toolbar/EqualLength'
-import { EqualAngle } from './components/Toolbar/EqualAngle'
-import { Intersect } from './components/Toolbar/Intersect'
-import { SetHorzVertDistance } from './components/Toolbar/SetHorzVertDistance'
-import { SetAngleLength } from './components/Toolbar/setAngleLength'
-import { SetAbsDistance } from './components/Toolbar/SetAbsDistance'
-import { SetAngleBetween } from './components/Toolbar/SetAngleBetween'
-import { Fragment, useEffect } from 'react'
+import { ToolTip } from './useStore'
+import { Fragment, WheelEvent, useRef, useMemo } from 'react'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
 import { faSearch, faX } from '@fortawesome/free-solid-svg-icons'
 import { Popover, Transition } from '@headlessui/react'
 import styles from './Toolbar.module.css'
-import { v4 as uuidv4 } from 'uuid'
-import { useAppMode } from 'hooks/useAppMode'
+import { isCursorInSketchCommandRange } from 'lang/util'
 import { ActionIcon } from 'components/ActionIcon'
 import { engineCommandManager } from './lang/std/engineConnection'
+import { useModelingContext } from 'hooks/useModelingContext'

 export const sketchButtonClassnames = {
  background:
@ -44,241 +33,151 @@ const sketchFnLabels: Record<ToolTip | 'sketch_line' | 'move', string> = {
 }

 export const Toolbar = () => {
-  const {
-    setGuiMode,
-    guiMode,
-    selectionRanges,
-    ast,
-    updateAst,
-    programMemory,
-    executeAst,
-  } = useStore((s) => ({
-    guiMode: s.guiMode,
-    setGuiMode: s.setGuiMode,
-    selectionRanges: s.selectionRanges,
-    ast: s.ast,
-    updateAst: s.updateAst,
-    programMemory: s.programMemory,
-    executeAst: s.executeAst,
-  }))
-  useAppMode()
+  const { state, send, context } = useModelingContext()
+  const toolbarButtonsRef = useRef<HTMLSpanElement>(null)
+  const pathId = useMemo(
+    () =>
+      isCursorInSketchCommandRange(
+        engineCommandManager.artifactMap,
+        context.selectionRanges
+      ),
+    [engineCommandManager.artifactMap, context.selectionRanges]
+  )
+
+  function handleToolbarButtonsWheelEvent(ev: WheelEvent<HTMLSpanElement>) {
+    const span = toolbarButtonsRef.current
+    if (!span) {
+      return
+    }
+
+    span.scrollLeft = span.scrollLeft += ev.deltaY
+  }

  function ToolbarButtons({ className }: React.HTMLAttributes<HTMLElement>) {
    return (
-      <span className={styles.toolbarButtons + ' ' + className}>
-        {guiMode.mode === 'default' && (
+      <span
+        ref={toolbarButtonsRef}
+        onWheel={handleToolbarButtonsWheelEvent}
+        className={styles.toolbarButtons + ' ' + className}
+      >
+        {state.nextEvents.includes('Enter sketch') && (
          <button
-            onClick={() => {
-              setGuiMode({
-                mode: 'sketch',
-                sketchMode: 'selectFace',
-              })
-            }}
+            onClick={() => send({ type: 'Enter sketch' })}
            className="group"
          >
            <ActionIcon icon="sketch" className="!p-0.5" size="md" />
            Start Sketch
          </button>
        )}
-        {guiMode.mode === 'canEditExtrude' && (
+        {state.nextEvents.includes('Enter sketch') && pathId && (
          <button
-            onClick={() => {
-              if (!ast) return
-              const pathToNode = getNodePathFromSourceRange(
-                ast,
-                selectionRanges.codeBasedSelections[0].range
-              )
-              const { modifiedAst } = sketchOnExtrudedFace(
-                ast,
-                pathToNode,
-                programMemory
-              )
-              updateAst(modifiedAst, true)
-            }}
-            className="group"
-          >
-            <ActionIcon icon="sketch" className="!p-0.5" size="md" />
-            Sketch on Face
-          </button>
-        )}
-        {guiMode.mode === 'canEditSketch' && (
-          <button
-            onClick={() => {
-              const pathToNode = getNodePathFromSourceRange(
-                ast,
-                selectionRanges.codeBasedSelections[0].range
-              )
-              setGuiMode({
-                mode: 'sketch',
-                sketchMode: 'enterSketchEdit',
-                pathToNode: pathToNode,
-                rotation: [0, 0, 0, 1],
-                position: [0, 0, 0],
-                pathId: guiMode.pathId,
-              })
-            }}
+            onClick={() => send({ type: 'Enter sketch' })}
            className="group"
          >
            <ActionIcon icon="sketch" className="!p-0.5" size="md" />
            Edit Sketch
          </button>
        )}
-        {guiMode.mode === 'canEditSketch' && (
-          <>
-            <button
-              onClick={() => {
-                if (!ast) return
-                const pathToNode = getNodePathFromSourceRange(
-                  ast,
-                  selectionRanges.codeBasedSelections[0].range
-                )
-                const { modifiedAst, pathToExtrudeArg } = extrudeSketch(
-                  ast,
-                  pathToNode
-                )
-                updateAst(modifiedAst, true, { focusPath: pathToExtrudeArg })
-              }}
-              className="group"
-            >
-              <ActionIcon icon="extrude" className="!p-0.5" size="md" />
-              Extrude
-            </button>
-            <button
-              onClick={() => {
-                if (!ast) return
-                const pathToNode = getNodePathFromSourceRange(
-                  ast,
-                  selectionRanges.codeBasedSelections[0].range
-                )
-                const { modifiedAst, pathToExtrudeArg } = extrudeSketch(
-                  ast,
-                  pathToNode,
-                  false
-                )
-                updateAst(modifiedAst, true, { focusPath: pathToExtrudeArg })
-              }}
-              className="group"
-            >
-              <ActionIcon icon="extrude" className="!p-0.5" size="md" />
-              Extrude as new
-            </button>
-          </>
-        )}
-
-        {guiMode.mode === 'sketch' && (
-          <button
-            onClick={() => {
-              engineCommandManager.sendSceneCommand({
-                type: 'modeling_cmd_req',
-                cmd_id: uuidv4(),
-                cmd: { type: 'edit_mode_exit' },
-              })
-              engineCommandManager.sendSceneCommand({
-                type: 'modeling_cmd_req',
-                cmd_id: uuidv4(),
-                cmd: { type: 'default_camera_disable_sketch_mode' },
-              })
-
-              setGuiMode({ mode: 'default' })
-              executeAst()
-            }}
-            className="group"
-          >
-            <ActionIcon
-              icon="exit"
-              className="!p-0.5"
-              bgClassName={sketchButtonClassnames.background}
-              iconClassName={sketchButtonClassnames.icon}
-              size="md"
-            />
-            Exit sketch
+        {state.nextEvents.includes('Cancel') && !state.matches('idle') && (
+          <button onClick={() => send({ type: 'Cancel' })} className="group">
+            <ActionIcon icon="exit" className="!p-0.5" size="md" />
+            Exit Sketch
          </button>
        )}
-        {toolTips
-          .filter(
-            // (sketchFnName) => !['angledLineThatIntersects'].includes(sketchFnName)
-            (sketchFnName) => ['sketch_line', 'move'].includes(sketchFnName)
-          )
-          .map((sketchFnName) => {
-            if (
-              guiMode.mode !== 'sketch' ||
-              !('isTooltip' in guiMode || guiMode.sketchMode === 'sketchEdit')
+        {state.matches('Sketch') && !state.matches('idle') && (
+          <button
+            onClick={() =>
+              state.matches('Sketch.Line Tool')
+                ? send('CancelSketch')
+                : send('Equip tool')
+            }
+            className={
+              'group ' +
+              (state.matches('Sketch.Line Tool')
+                ? '!text-fern-70 !bg-fern-10 !dark:text-fern-20 !border-fern-50'
+                : '')
+            }
+          >
+            <ActionIcon icon="line" className="!p-0.5" size="md" />
+            Line
+          </button>
+        )}
+        {state.matches('Sketch') && (
+          <button
+            onClick={() =>
+              state.matches('Sketch.Move Tool')
+                ? send('CancelSketch')
+                : send('Equip move tool')
+            }
+            className={
+              'group ' +
+              (state.matches('Sketch.Move Tool')
+                ? '!text-fern-70 !bg-fern-10 !dark:text-fern-20 !border-fern-50'
+                : '')
+            }
+          >
+            <ActionIcon icon="move" className="!p-0.5" size="md" />
+            Move
+          </button>
+        )}
+        {state.matches('Sketch.SketchIdle') &&
+          state.nextEvents
+            .filter(
+              (eventName) =>
+                eventName.includes('Make segment') ||
+                eventName.includes('Constrain')
            )
-              return null
-            return (
+            .map((eventName) => (
              <button
-                key={sketchFnName}
-                onClick={() => {
-                  engineCommandManager.sendSceneCommand({
-                    type: 'modeling_cmd_req',
-                    cmd_id: uuidv4(),
-                    cmd: {
-                      type: 'set_tool',
-                      tool:
-                        guiMode.sketchMode === sketchFnName
-                          ? 'select'
-                          : (sketchFnName as any),
-                    },
-                  })
-                  setGuiMode({
-                    ...guiMode,
-                    ...(guiMode.sketchMode === sketchFnName
-                      ? {
-                          sketchMode: 'sketchEdit',
-                          // todo: ...guiMod is adding isTooltip: true, will probably just fix with xstate migtaion
-                        }
-                      : {
-                          sketchMode: sketchFnName,
-                          waitingFirstClick: true,
-                          isTooltip: true,
-                          pathId: guiMode.pathId,
-                        }),
-                  })
-                }}
-                className={
-                  'group ' +
-                  (guiMode.sketchMode === sketchFnName
-                    ? '!text-fern-70 !bg-fern-10 !dark:text-fern-20 !border-fern-50'
-                    : '')
+                key={eventName}
+                onClick={() => send(eventName)}
+                className="group"
+                disabled={
+                  !state.nextEvents
+                    .filter((event) => state.can(event as any))
+                    .includes(eventName)
                }
+                title={eventName}
              >
                <ActionIcon
-                  icon={sketchFnName.includes('line') ? 'line' : 'move'}
-                  className="!p-0.5"
+                  icon={'line'} // TODO
                  bgClassName={sketchButtonClassnames.background}
                  iconClassName={sketchButtonClassnames.icon}
                  size="md"
                />
-                {sketchFnLabels[sketchFnName]}
+                {eventName
+                  .replace('Make segment ', '')
+                  .replace('Constrain ', '')}
              </button>
-            )
-          })}
-        <HorzVert horOrVert="horizontal" />
-        <HorzVert horOrVert="vertical" />
-        <EqualLength />
-        <EqualAngle />
-        <SetHorzVertDistance buttonType="alignEndsVertically" />
-        <SetHorzVertDistance buttonType="setHorzDistance" />
-        <SetAbsDistance buttonType="snapToYAxis" />
-        <SetAbsDistance buttonType="xAbs" />
-        <SetHorzVertDistance buttonType="alignEndsHorizontally" />
-        <SetAbsDistance buttonType="snapToXAxis" />
-        <SetHorzVertDistance buttonType="setVertDistance" />
-        <SetAbsDistance buttonType="yAbs" />
-        <SetAngleLength angleOrLength="setAngle" />
-        <SetAngleLength angleOrLength="setLength" />
-        <Intersect />
-        <RemoveConstrainingValues />
-        <SetAngleBetween />
+            ))}
+        {state.matches('idle') && (
+          <button
+            onClick={() => send('extrude intent')}
+            disabled={!state.can('extrude intent')}
+            className="group"
+            title={
+              state.can('extrude intent')
+                ? 'extrude'
+                : 'sketches need to be closed, or not already extruded'
+            }
+          >
+            <ActionIcon icon="extrude" className="!p-0.5" size="md" />
+            Extrude
+          </button>
+        )}
      </span>
    )
  }

  return (
-    <Popover className={styles.toolbarWrapper + ' ' + guiMode.mode}>
+    <Popover
+      className={
+        styles.toolbarWrapper + state.matches('Sketch') ? ' sketch' : ''
+      }
+    >
      <div className={styles.toolbar}>
        <span className={styles.toolbarCap + ' ' + styles.label}>
-          {guiMode.mode === 'sketch' ? '2D' : '3D'}
+          {state.matches('Sketch') ? '2D' : '3D'}
        </span>
        <menu className="flex-1 gap-2 py-0.5 overflow-hidden whitespace-nowrap">
          <ToolbarButtons />
@ -314,7 +213,7 @@ export const Toolbar = () => {
            <p
              className={`${styles.toolbarCap} ${styles.label} !self-center rounded-r-full w-fit`}
            >
-              You're in {guiMode.mode === 'sketch' ? '2D' : '3D'}
+              You're in {state.matches('Sketch') ? '2D' : '3D'}
            </p>
            <Popover.Button className="p-2 flex items-center justify-center rounded-sm bg-chalkboard-20 text-chalkboard-110 dark:bg-chalkboard-70 dark:text-chalkboard-20 border-none hover:bg-chalkboard-30 dark:hover:bg-chalkboard-60">
              <FontAwesomeIcon icon={faX} className="w-4 h-4" />
--- a/src/components/AppHeader.tsx
+++ b/src/components/AppHeader.tsx
@ -1,6 +1,6 @@
 import { Toolbar } from '../Toolbar'
 import UserSidebarMenu from './UserSidebarMenu'
-import { ProjectWithEntryPointMetadata } from '../Router'
+import { IndexLoaderData } from '../Router'
 import ProjectSidebarMenu from './ProjectSidebarMenu'
 import { useGlobalStateContext } from 'hooks/useGlobalStateContext'
 import styles from './AppHeader.module.css'
@ -8,7 +8,7 @@ import { NetworkHealthIndicator } from './NetworkHealthIndicator'

 interface AppHeaderProps extends React.PropsWithChildren {
  showToolbar?: boolean
-  project?: ProjectWithEntryPointMetadata
+  project?: Omit<IndexLoaderData, 'code'>
  className?: string
  enableMenu?: boolean
 }
@ -20,11 +20,8 @@ export const AppHeader = ({
  className = '',
  enableMenu = false,
 }: AppHeaderProps) => {
-  const {
-    auth: {
-      context: { user },
-    },
-  } = useGlobalStateContext()
+  const { auth } = useGlobalStateContext()
+  const user = auth?.context?.user

  return (
    <header
@ -35,7 +32,11 @@ export const AppHeader = ({
        className
      }
    >
-      <ProjectSidebarMenu renderAsLink={!enableMenu} project={project} />
+      <ProjectSidebarMenu
+        renderAsLink={!enableMenu}
+        project={project?.project}
+        file={project?.file}
+      />
      {/* Toolbar if the context deems it */}
      {showToolbar && (
        <div className="max-w-lg md:max-w-xl lg:max-w-2xl xl:max-w-4xl 2xl:max-w-5xl">
@ -44,7 +45,7 @@ export const AppHeader = ({
      )}
      {/* If there are children, show them, otherwise show User menu */}
      {children || (
-        <div className="ml-auto flex items-center gap-1">
+        <div className="flex items-center gap-1 ml-auto">
          <NetworkHealthIndicator />
          <UserSidebarMenu user={user} />
        </div>
--- a/src/components/AstExplorer.tsx
+++ b/src/components/AstExplorer.tsx
@ -1,18 +1,18 @@
+import { useModelingContext } from 'hooks/useModelingContext'
+import { kclManager } from 'lang/KclSinglton'
 import { getNodeFromPath, getNodePathFromSourceRange } from 'lang/queryAst'
 import { useEffect, useRef, useState } from 'react'
 import { useStore } from 'useStore'

 export function AstExplorer() {
-  const { ast, setHighlightRange, selectionRanges } = useStore((s) => ({
-    ast: s.ast,
-    setHighlightRange: s.setHighlightRange,
-    selectionRanges: s.selectionRanges,
-  }))
+  const setHighlightRange = useStore((s) => s.setHighlightRange)
+  const { context } = useModelingContext()
  const pathToNode = getNodePathFromSourceRange(
-    ast,
-    selectionRanges.codeBasedSelections?.[0]?.range
+    // TODO maybe need to have callback to make sure it stays in sync
+    kclManager.ast,
+    context.selectionRanges.codeBasedSelections?.[0]?.range
  )
-  const node = getNodeFromPath(ast, pathToNode).node
+  const node = getNodeFromPath(kclManager.ast, pathToNode).node
  const [filterKeys, setFilterKeys] = useState<string[]>(['start', 'end'])

  return (
@ -46,7 +46,11 @@ export function AstExplorer() {
        }}
      >
        <pre className=" text-xs overflow-y-auto" style={{ width: '300px' }}>
-          <DisplayObj obj={ast} filterKeys={filterKeys} node={node} />
+          <DisplayObj
+            obj={kclManager.ast}
+            filterKeys={filterKeys}
+            node={node}
+          />
        </pre>
      </div>
    </div>
@ -84,10 +88,8 @@ function DisplayObj({
  filterKeys: string[]
  node: any
 }) {
-  const { setHighlightRange, setCursor2 } = useStore((s) => ({
-    setHighlightRange: s.setHighlightRange,
-    setCursor2: s.setCursor2,
-  }))
+  const setHighlightRange = useStore((s) => s.setHighlightRange)
+  const { send } = useModelingContext()
  const ref = useRef<HTMLPreElement>(null)
  const [hasCursor, setHasCursor] = useState(false)
  const [isCollapsed, setIsCollapsed] = useState(false)
@ -118,7 +120,16 @@ function DisplayObj({
        setHighlightRange([obj?.start || 0, obj.end])
      }}
      onClick={(e) => {
-        setCursor2({ type: 'default', range: [obj?.start || 0, obj.end || 0] })
+        send({
+          type: 'Set selection',
+          data: {
+            selectionType: 'singleCodeCursor',
+            selection: {
+              type: 'default',
+              range: [obj?.start || 0, obj.end || 0],
+            },
+          },
+        })
        e.stopPropagation()
      }}
    >
--- a/src/components/AvailableVarsHelpers.tsx
+++ b/src/components/AvailableVarsHelpers.tsx
@ -7,8 +7,9 @@ import {
  findUniqueName,
 } from '../lang/modifyAst'
 import { findAllPreviousVariables, PrevVariable } from '../lang/queryAst'
-import { useStore } from '../useStore'
 import { engineCommandManager } from '../lang/std/engineConnection'
+import { kclManager, useKclContext } from 'lang/KclSinglton'
+import { useModelingContext } from 'hooks/useModelingContext'

 export const AvailableVars = ({
  onVarClick,
@ -91,11 +92,9 @@ export function useCalc({
  newVariableInsertIndex: number
  setNewVariableName: (a: string) => void
 } {
-  const { ast, programMemory, selectionRange } = useStore((s) => ({
-    ast: s.ast,
-    programMemory: s.programMemory,
-    selectionRange: s.selectionRanges.codeBasedSelections[0].range,
-  }))
+  const { programMemory } = useKclContext()
+  const { context } = useModelingContext()
+  const selectionRange = context.selectionRanges.codeBasedSelections[0].range
  const inputRef = useRef<HTMLInputElement>(null)
  const [availableVarInfo, setAvailableVarInfo] = useState<
    ReturnType<typeof findAllPreviousVariables>
@ -115,9 +114,7 @@ export function useCalc({
      inputRef.current &&
        inputRef.current.setSelectionRange(0, String(value).length)
    }, 100)
-    if (ast) {
-      setNewVariableName(findUniqueName(ast, valueName))
-    }
+    setNewVariableName(findUniqueName(kclManager.ast, valueName))
  }, [])

  useEffect(() => {
@ -130,10 +127,14 @@ export function useCalc({
  }, [newVariableName])

  useEffect(() => {
-    if (!ast || !programMemory || !selectionRange) return
-    const varInfo = findAllPreviousVariables(ast, programMemory, selectionRange)
+    if (!programMemory || !selectionRange) return
+    const varInfo = findAllPreviousVariables(
+      kclManager.ast,
+      programMemory,
+      selectionRange
+    )
    setAvailableVarInfo(varInfo)
-  }, [ast, programMemory, selectionRange])
+  }, [kclManager.ast, programMemory, selectionRange])

  useEffect(() => {
    try {
@ -143,7 +144,13 @@ export function useCalc({
      availableVarInfo.variables.forEach(({ key, value }) => {
        _programMem.root[key] = { type: 'userVal', value, __meta: [] }
      })
-      executor(ast, _programMem, engineCommandManager).then((programMemory) => {
+
+      executor(
+        ast,
+        _programMem,
+        engineCommandManager,
+        kclManager.defaultPlanes
+      ).then((programMemory) => {
        const resultDeclaration = ast.body.find(
          (a) =>
            a.type === 'VariableDeclaration' &&
--- a/src/components/CodeMenu.tsx
+++ b/src/components/CodeMenu.tsx
@ -5,16 +5,13 @@ import {
  faEllipsis,
 } from '@fortawesome/free-solid-svg-icons'
 import { ActionIcon } from './ActionIcon'
-import { useStore } from 'useStore'
 import styles from './CodeMenu.module.css'
 import { useConvertToVariable } from 'hooks/useToolbarGuards'
 import { editorShortcutMeta } from './TextEditor'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { kclManager } from 'lang/KclSinglton'

 export const CodeMenu = ({ children }: PropsWithChildren) => {
-  const { formatCode } = useStore((s) => ({
-    formatCode: s.formatCode,
-  }))
  const { enable: convertToVarEnabled, handleClick: handleConvertToVarClick } =
    useConvertToVariable()

@ -41,7 +38,10 @@ export const CodeMenu = ({ children }: PropsWithChildren) => {
        </Menu.Button>
        <Menu.Items className="absolute right-0 left-auto w-72 flex flex-col gap-1 divide-y divide-chalkboard-20 dark:divide-chalkboard-70 align-stretch px-0 py-1 bg-chalkboard-10 dark:bg-chalkboard-90 rounded-sm shadow-lg border border-solid border-chalkboard-20/50 dark:border-chalkboard-80/50">
          <Menu.Item>
-            <button onClick={() => formatCode()} className={styles.button}>
+            <button
+              onClick={() => kclManager.format()}
+              className={styles.button}
+            >
              <span>Format code</span>
              <small>{editorShortcutMeta.formatCode.display}</small>
            </button>
--- a/src/components/CustomIcon.tsx
+++ b/src/components/CustomIcon.tsx
@ -1,7 +1,10 @@
 export type CustomIconName =
+  | 'createFile'
+  | 'createFolder'
  | 'equal'
  | 'exit'
  | 'extrude'
+  | 'file'
  | 'horizontal'
  | 'line'
  | 'move'
@ -16,6 +19,38 @@ export const CustomIcon = ({
  name: CustomIconName
 } & React.SVGProps<SVGSVGElement>) => {
  switch (name) {
+    case 'createFile':
+      return (
+        <svg
+          {...props}
+          viewBox="0 0 20 20"
+          fill="none"
+          xmlns="http://www.w3.org/2000/svg"
+        >
+          <path
+            fillRule="evenodd"
+            clipRule="evenodd"
+            d="M4 3H4.5H11H11.2071L11.3536 3.14645L15.8536 7.64646L16 7.7929V8.00001V11.3773C15.6992 11.1362 15.3628 10.9376 15 10.7908V8.50001H11H10.5V8.00001V4H5V16H9.79076C9.93763 16.3628 10.1362 16.6992 10.3773 17H4.5H4V16.5V3.5V3ZM11.5 4.70711L14.2929 7.50001H11.5V4.70711ZM13 12V14H11V15H13V17H14V15H16V14H14V12H13Z"
+            fill="currentColor"
+          />
+        </svg>
+      )
+    case 'createFolder':
+      return (
+        <svg
+          {...props}
+          viewBox="0 0 20 20"
+          fill="none"
+          xmlns="http://www.w3.org/2000/svg"
+        >
+          <path
+            fillRule="evenodd"
+            clipRule="evenodd"
+            d="M3.5 3.5H4H7H7.16667L7.3 3.6L9.16667 5H16H16.5V5.5V7.5V10.3773C16.1992 10.1362 15.8628 9.93763 15.5 9.79076V8H4.5V15.5H10.5351C10.7529 15.8764 11.0302 16.2141 11.3542 16.5H4H3.5V16V7.5V4V3.5ZM4.5 4.5V7H15.5V6H9H8.83333L8.7 5.9L6.83333 4.5H4.5ZM13.5 11V13H11.5V14H13.5V16H14.5V14H16.5V13H14.5V11H13.5Z"
+            fill="currentColor"
+          />
+        </svg>
+      )
    case 'equal':
      return (
        <svg
@ -61,6 +96,20 @@ export const CustomIcon = ({
          />
        </svg>
      )
+    case 'file':
+      return (
+        <svg
+          {...props}
+          viewBox="0 0 20 20"
+          fill="none"
+          xmlns="http://www.w3.org/2000/svg"
+        >
+          <path
+            d="M11 3.5H4.5V16.5H15.5V8.00001M11 3.5L15.5 8.00001M11 3.5V8.00001H15.5"
+            stroke="currentColor"
+          />
+        </svg>
+      )
    case 'horizontal':
      return (
        <svg
--- a/src/components/ErrorPage.tsx
+++ b/src/components/ErrorPage.tsx
@ -47,11 +47,9 @@ export const ErrorPage = () => {
            Clear storage
          </ActionButton>
          <ActionButton
-            Element="link"
+            Element="externalLink"
            icon={{ icon: faBug }}
-            target="_blank"
-            rel="noopener noreferrer"
-            to="https://discord.com/channels/915388055236509727/1138967922614743060"
+            to="https://github.com/KittyCAD/modeling-app/issues/new"
          >
            Report Bug
          </ActionButton>
--- a/src/components/ExportButton.tsx
+++ b/src/components/ExportButton.tsx
@ -16,8 +16,8 @@ type StorageUnion = ExtractStorageTypes<OutputFormat>
 interface ExportButtonProps extends React.PropsWithChildren {
  className?: {
    button?: string
-    // If we wanted more classname configuration of sub-elements,
-    // put them here
+    icon?: string
+    bg?: string
  }
 }

@ -109,7 +109,11 @@ export const ExportButton = ({ children, className }: ExportButtonProps) => {
      <ActionButton
        onClick={openModal}
        Element="button"
-        icon={{ icon: faFileExport }}
+        icon={{
+          icon: faFileExport,
+          iconClassName: className?.icon,
+          bgClassName: className?.bg,
+        }}
        className={className?.button}
      >
        {children || 'Export'}
--- a/src/components/FileMachineProvider.tsx
+++ b/src/components/FileMachineProvider.tsx
@ -0,0 +1,158 @@
+import { useMachine } from '@xstate/react'
+import { useNavigate, useRouteLoaderData } from 'react-router-dom'
+import { IndexLoaderData, paths } from '../Router'
+import React, { createContext } from 'react'
+import { toast } from 'react-hot-toast'
+import {
+  AnyStateMachine,
+  ContextFrom,
+  EventFrom,
+  InterpreterFrom,
+  Prop,
+  StateFrom,
+} from 'xstate'
+import { useCommandsContext } from 'hooks/useCommandsContext'
+import { DEFAULT_FILE_NAME, fileMachine } from 'machines/fileMachine'
+import {
+  createDir,
+  removeDir,
+  removeFile,
+  renameFile,
+  writeFile,
+} from '@tauri-apps/api/fs'
+import { FILE_EXT, readProject } from 'lib/tauriFS'
+import { isTauri } from 'lib/isTauri'
+import { sep } from '@tauri-apps/api/path'
+
+type MachineContext<T extends AnyStateMachine> = {
+  state: StateFrom<T>
+  context: ContextFrom<T>
+  send: Prop<InterpreterFrom<T>, 'send'>
+}
+
+export const FileContext = createContext(
+  {} as MachineContext<typeof fileMachine>
+)
+
+export const FileMachineProvider = ({
+  children,
+}: {
+  children: React.ReactNode
+}) => {
+  const navigate = useNavigate()
+  const { setCommandBarOpen } = useCommandsContext()
+  const { project } = useRouteLoaderData(paths.FILE) as IndexLoaderData
+
+  const [state, send] = useMachine(fileMachine, {
+    context: {
+      project,
+      selectedDirectory: project,
+    },
+    actions: {
+      navigateToFile: (
+        context: ContextFrom<typeof fileMachine>,
+        event: EventFrom<typeof fileMachine>
+      ) => {
+        if (event.data && 'name' in event.data) {
+          setCommandBarOpen(false)
+          navigate(
+            `${paths.FILE}/${encodeURIComponent(
+              context.selectedDirectory + sep + event.data.name
+            )}`
+          )
+        }
+      },
+      toastSuccess: (_, event) =>
+        event.data && toast.success((event.data || '') + ''),
+      toastError: (_, event) => toast.error((event.data || '') + ''),
+    },
+    services: {
+      readFiles: async (context: ContextFrom<typeof fileMachine>) => {
+        const newFiles = isTauri()
+          ? await readProject(context.project.path)
+          : []
+        return {
+          ...context.project,
+          children: newFiles,
+        }
+      },
+      createFile: async (
+        context: ContextFrom<typeof fileMachine>,
+        event: EventFrom<typeof fileMachine, 'Create file'>
+      ) => {
+        let name = event.data.name.trim() || DEFAULT_FILE_NAME
+
+        if (event.data.makeDir) {
+          await createDir(context.selectedDirectory.path + sep + name)
+        } else {
+          await writeFile(
+            context.selectedDirectory.path +
+              sep +
+              name +
+              (name.endsWith(FILE_EXT) ? '' : FILE_EXT),
+            ''
+          )
+        }
+
+        return `Successfully created "${name}"`
+      },
+      renameFile: async (
+        context: ContextFrom<typeof fileMachine>,
+        event: EventFrom<typeof fileMachine, 'Rename file'>
+      ) => {
+        const { oldName, newName, isDir } = event.data
+        let name = newName ? newName : DEFAULT_FILE_NAME
+
+        await renameFile(
+          context.selectedDirectory.path + sep + oldName,
+          context.selectedDirectory.path +
+            sep +
+            name +
+            (name.endsWith(FILE_EXT) || isDir ? '' : FILE_EXT)
+        )
+        return (
+          oldName !== name && `Successfully renamed "${oldName}" to "${name}"`
+        )
+      },
+      deleteFile: async (
+        context: ContextFrom<typeof fileMachine>,
+        event: EventFrom<typeof fileMachine, 'Delete file'>
+      ) => {
+        const isDir = !!event.data.children
+
+        if (isDir) {
+          await removeDir(event.data.path, {
+            recursive: true,
+          }).catch((e) => console.error('Error deleting directory', e))
+        } else {
+          await removeFile(event.data.path).catch((e) =>
+            console.error('Error deleting file', e)
+          )
+        }
+        return `Successfully deleted ${isDir ? 'folder' : 'file'} "${
+          event.data.name
+        }"`
+      },
+    },
+    guards: {
+      'Has at least 1 file': (_, event: EventFrom<typeof fileMachine>) => {
+        if (event.type !== 'done.invoke.read-files') return false
+        return !!event?.data?.children && event.data.children.length > 0
+      },
+    },
+  })
+
+  return (
+    <FileContext.Provider
+      value={{
+        send,
+        state,
+        context: state.context, // just a convenience, can remove if we need to save on memory
+      }}
+    >
+      {children}
+    </FileContext.Provider>
+  )
+}
+
+export default FileMachineProvider
--- a/src/components/FileTree.module.css
+++ b/src/components/FileTree.module.css
@ -0,0 +1,16 @@
+.folder {
+  position: relative;
+}
+
+.folder::after {
+  content: '';
+  width: 1px;
+  z-index: -1;
+  @apply absolute top-0 bottom-0;
+  left: calc(var(--indent-line-left, 1rem) + 0.25rem);
+  @apply bg-chalkboard-30;
+}
+
+:global(.dark) .folder::after {
+  @apply bg-chalkboard-80;
+}
--- a/src/components/FileTree.tsx
+++ b/src/components/FileTree.tsx
@ -0,0 +1,400 @@
+import { IndexLoaderData, paths } from 'Router'
+import { ActionButton } from './ActionButton'
+import Tooltip from './Tooltip'
+import { FileEntry } from '@tauri-apps/api/fs'
+import { Dispatch, useEffect, useRef, useState } from 'react'
+import { useNavigate } from 'react-router-dom'
+import { Dialog, Disclosure } from '@headlessui/react'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faChevronRight, faTrashAlt } from '@fortawesome/free-solid-svg-icons'
+import { useFileContext } from 'hooks/useFileContext'
+import { useHotkeys } from 'react-hotkeys-hook'
+import { kclManager } from 'lang/KclSinglton'
+import styles from './FileTree.module.css'
+import { sortProject } from 'lib/tauriFS'
+
+function getIndentationCSS(level: number) {
+  return `calc(1rem * ${level + 1})`
+}
+
+function RenameForm({
+  fileOrDir,
+  setIsRenaming,
+  level = 0,
+}: {
+  fileOrDir: FileEntry
+  setIsRenaming: Dispatch<React.SetStateAction<boolean>>
+  level?: number
+}) {
+  const { send } = useFileContext()
+  const inputRef = useRef<HTMLInputElement>(null)
+
+  function handleRenameSubmit(e: React.FormEvent<HTMLFormElement>) {
+    e.preventDefault()
+    setIsRenaming(false)
+    send({
+      type: 'Rename file',
+      data: {
+        oldName: fileOrDir.name || '',
+        newName: inputRef.current?.value || fileOrDir.name || '',
+        isDir: fileOrDir.children !== undefined,
+      },
+    })
+  }
+
+  function handleKeyDown(e: React.KeyboardEvent<HTMLInputElement>) {
+    if (e.key === 'Escape') {
+      e.stopPropagation()
+      setIsRenaming(false)
+    }
+  }
+
+  return (
+    <form onSubmit={handleRenameSubmit}>
+      <label>
+        <span className="sr-only">Rename file</span>
+        <input
+          ref={inputRef}
+          type="text"
+          autoFocus
+          placeholder={fileOrDir.name}
+          className="w-full py-1 bg-transparent text-chalkboard-100 placeholder:text-chalkboard-70 dark:text-chalkboard-10 dark:placeholder:text-chalkboard-50 focus:outline-none focus:ring-0"
+          onKeyDown={handleKeyDown}
+          onBlur={() => setIsRenaming(false)}
+          style={{ paddingInlineStart: getIndentationCSS(level) }}
+        />
+      </label>
+      <button className="sr-only" type="submit">
+        Submit
+      </button>
+    </form>
+  )
+}
+
+function DeleteConfirmationDialog({
+  fileOrDir,
+  setIsOpen,
+}: {
+  fileOrDir: FileEntry
+  setIsOpen: Dispatch<React.SetStateAction<boolean>>
+}) {
+  const { send } = useFileContext()
+  return (
+    <Dialog
+      open={true}
+      onClose={() => setIsOpen(false)}
+      className="relative z-50"
+    >
+      <div className="fixed inset-0 bg-chalkboard-110/80 grid place-content-center">
+        <Dialog.Panel className="rounded p-4 bg-chalkboard-10 dark:bg-chalkboard-100 border border-destroy-80 max-w-2xl">
+          <Dialog.Title as="h2" className="text-2xl font-bold mb-4">
+            Delete {fileOrDir.children !== undefined ? 'Folder' : 'File'}
+          </Dialog.Title>
+          <Dialog.Description className="my-6">
+            This will permanently delete "{fileOrDir.name || 'this file'}"
+            {fileOrDir.children !== undefined
+              ? ' and all of its contents. '
+              : '. '}
+            This action cannot be undone.
+          </Dialog.Description>
+
+          <div className="flex justify-between">
+            <ActionButton
+              Element="button"
+              onClick={async () => {
+                send({ type: 'Delete file', data: fileOrDir })
+                setIsOpen(false)
+              }}
+              icon={{
+                icon: faTrashAlt,
+                bgClassName: 'bg-destroy-80',
+                iconClassName:
+                  'text-destroy-20 group-hover:text-destroy-10 hover:text-destroy-10 dark:text-destroy-20 dark:group-hover:text-destroy-10 dark:hover:text-destroy-10',
+              }}
+              className="hover:border-destroy-40 dark:hover:border-destroy-40"
+            >
+              Delete
+            </ActionButton>
+            <ActionButton Element="button" onClick={() => setIsOpen(false)}>
+              Cancel
+            </ActionButton>
+          </div>
+        </Dialog.Panel>
+      </div>
+    </Dialog>
+  )
+}
+
+const FileTreeItem = ({
+  project,
+  currentFile,
+  fileOrDir,
+  closePanel,
+  level = 0,
+}: {
+  project?: IndexLoaderData['project']
+  currentFile?: IndexLoaderData['file']
+  fileOrDir: FileEntry
+  closePanel: (
+    focusableElement?:
+      | HTMLElement
+      | React.MutableRefObject<HTMLElement | null>
+      | undefined
+  ) => void
+  level?: number
+}) => {
+  const { send, context } = useFileContext()
+  const navigate = useNavigate()
+  const [isRenaming, setIsRenaming] = useState(false)
+  const [isConfirmingDelete, setIsConfirmingDelete] = useState(false)
+  const isCurrentFile = fileOrDir.path === currentFile?.path
+
+  function handleKeyUp(e: React.KeyboardEvent<HTMLButtonElement>) {
+    if (e.metaKey && e.key === 'Backspace') {
+      // Open confirmation dialog
+      setIsConfirmingDelete(true)
+    } else if (e.key === 'Enter') {
+      // Show the renaming form
+      setIsRenaming(true)
+    } else if (e.code === 'Space') {
+      openFile()
+    }
+  }
+
+  function openFile() {
+    if (fileOrDir.children !== undefined) return // Don't open directories
+    kclManager.setCode('')
+    navigate(`${paths.FILE}/${encodeURIComponent(fileOrDir.path)}`)
+    closePanel()
+  }
+
+  return (
+    <>
+      {fileOrDir.children === undefined ? (
+        <li
+          className={
+            'group m-0 p-0 border-solid border-0 text-energy-100 hover:text-energy-70 hover:bg-energy-10/50 dark:text-energy-30 dark:hover:!text-energy-20 dark:hover:bg-energy-90/50 focus-within:bg-energy-10/80 dark:focus-within:bg-energy-80/50 hover:focus-within:bg-energy-10/80 dark:hover:focus-within:bg-energy-80/50 ' +
+            (isCurrentFile ? 'bg-energy-10/50 dark:bg-energy-90/50' : '')
+          }
+        >
+          {!isRenaming ? (
+            <button
+              className="flex gap-1 items-center py-0.5 rounded-none border-none p-0 m-0 text-sm w-full hover:!bg-transparent text-left !text-inherit"
+              style={{ paddingInlineStart: getIndentationCSS(level) }}
+              onDoubleClick={openFile}
+              onClick={(e) => e.currentTarget.focus()}
+              onKeyUp={handleKeyUp}
+            >
+              <KclIcon
+                className={
+                  'inline-block w-3 ' +
+                  (isCurrentFile
+                    ? 'text-energy-90 dark:text-energy-10'
+                    : 'text-energy-50 dark:text-energy-50')
+                }
+              />
+              {fileOrDir.name}
+            </button>
+          ) : (
+            <RenameForm
+              fileOrDir={fileOrDir}
+              setIsRenaming={setIsRenaming}
+              level={level}
+            />
+          )}
+        </li>
+      ) : (
+        <Disclosure defaultOpen={currentFile?.path.includes(fileOrDir.path)}>
+          {({ open }) => (
+            <div className="group">
+              {!isRenaming ? (
+                <Disclosure.Button
+                  className={
+                    ' group border-none text-sm rounded-none p-0 m-0 flex items-center justify-start w-full py-0.5 text-chalkboard-70 dark:text-chalkboard-30 hover:bg-energy-10/50 dark:hover:bg-energy-90/50' +
+                    (context.selectedDirectory.path.includes(fileOrDir.path)
+                      ? ' group-focus-within:bg-chalkboard-20/50 dark:group-focus-within:bg-chalkboard-80/20 hover:group-focus-within:bg-chalkboard-20 dark:hover:group-focus-within:bg-chalkboard-80/20 group-active:bg-chalkboard-20/50 dark:group-active:bg-chalkboard-80/20 hover:group-active:bg-chalkboard-20/50 dark:hover:group-active:bg-chalkboard-80/20'
+                      : '')
+                  }
+                  style={{ paddingInlineStart: getIndentationCSS(level) }}
+                  onClick={(e) => e.currentTarget.focus()}
+                  onClickCapture={(e) =>
+                    send({ type: 'Set selected directory', data: fileOrDir })
+                  }
+                  onFocusCapture={(e) =>
+                    send({ type: 'Set selected directory', data: fileOrDir })
+                  }
+                  onKeyDown={(e) => e.key === 'Enter' && e.preventDefault()}
+                  onKeyUp={handleKeyUp}
+                >
+                  <FontAwesomeIcon
+                    icon={faChevronRight}
+                    className={
+                      'inline-block mr-2 m-0 p-0 w-2 h-2 ' +
+                      (open ? 'transform rotate-90' : '')
+                    }
+                  />
+                  {fileOrDir.name}
+                </Disclosure.Button>
+              ) : (
+                <div
+                  className="flex items-center"
+                  style={{ paddingInlineStart: getIndentationCSS(level) }}
+                >
+                  <FontAwesomeIcon
+                    icon={faChevronRight}
+                    className={
+                      'inline-block mr-2 m-0 p-0 w-2 h-2 ' +
+                      (open ? 'transform rotate-90' : '')
+                    }
+                  />
+                  <RenameForm
+                    fileOrDir={fileOrDir}
+                    setIsRenaming={setIsRenaming}
+                    level={-1}
+                  />
+                </div>
+              )}
+              <Disclosure.Panel
+                className={styles.folder}
+                style={
+                  {
+                    '--indent-line-left': getIndentationCSS(level),
+                  } as React.CSSProperties
+                }
+              >
+                <ul
+                  className="m-0 p-0"
+                  onClickCapture={(e) => {
+                    send({ type: 'Set selected directory', data: fileOrDir })
+                  }}
+                  onFocusCapture={(e) =>
+                    send({ type: 'Set selected directory', data: fileOrDir })
+                  }
+                >
+                  {fileOrDir.children?.map((child) => (
+                    <FileTreeItem
+                      fileOrDir={child}
+                      project={project}
+                      currentFile={currentFile}
+                      closePanel={closePanel}
+                      level={level + 1}
+                      key={level + '-' + child.path}
+                    />
+                  ))}
+                </ul>
+              </Disclosure.Panel>
+            </div>
+          )}
+        </Disclosure>
+      )}
+      {isConfirmingDelete && (
+        <DeleteConfirmationDialog
+          fileOrDir={fileOrDir}
+          setIsOpen={setIsConfirmingDelete}
+        />
+      )}
+    </>
+  )
+}
+
+interface FileTreeProps {
+  className?: string
+  file?: IndexLoaderData['file']
+  closePanel: (
+    focusableElement?:
+      | HTMLElement
+      | React.MutableRefObject<HTMLElement | null>
+      | undefined
+  ) => void
+}
+
+export const FileTree = ({
+  className = '',
+  file,
+  closePanel,
+}: FileTreeProps) => {
+  const { send, context } = useFileContext()
+  useHotkeys('meta + n', createFile)
+  useHotkeys('meta + shift + n', createFolder)
+
+  async function createFile() {
+    send({ type: 'Create file', data: { name: '', makeDir: false } })
+  }
+
+  async function createFolder() {
+    send({ type: 'Create file', data: { name: '', makeDir: true } })
+  }
+
+  return (
+    <div className={className}>
+      <div className="flex items-center gap-1 px-4 py-1 bg-chalkboard-30/50 dark:bg-chalkboard-70/50">
+        <h2 className="flex-1 m-0 p-0 text-sm mono">Files</h2>
+        <ActionButton
+          Element="button"
+          icon={{
+            icon: 'createFile',
+            iconClassName: '!text-energy-80 dark:!text-energy-20',
+            bgClassName: 'hover:bg-energy-10/50 dark:hover:bg-transparent',
+          }}
+          className="!p-0 border-none bg-transparent !outline-none"
+          onClick={createFile}
+        >
+          <Tooltip position="inlineStart" delay={750}>
+            Create File
+          </Tooltip>
+        </ActionButton>
+
+        <ActionButton
+          Element="button"
+          icon={{
+            icon: 'createFolder',
+            iconClassName: '!text-energy-80 dark:!text-energy-20',
+            bgClassName: 'hover:bg-energy-10/50 dark:hover:bg-transparent',
+          }}
+          className="!p-0 border-none bg-transparent !outline-none"
+          onClick={createFolder}
+        >
+          <Tooltip position="inlineStart" delay={750}>
+            Create Folder
+          </Tooltip>
+        </ActionButton>
+      </div>
+      <div className="overflow-auto max-h-full pb-12">
+        <ul
+          className="m-0 p-0 text-sm"
+          onClickCapture={(e) => {
+            send({ type: 'Set selected directory', data: context.project })
+          }}
+        >
+          {sortProject(context.project.children || []).map((fileOrDir) => (
+            <FileTreeItem
+              project={context.project}
+              currentFile={file}
+              fileOrDir={fileOrDir}
+              closePanel={closePanel}
+              key={fileOrDir.path}
+            />
+          ))}
+        </ul>
+      </div>
+    </div>
+  )
+}
+
+function KclIcon({ className = '' }: { className?: string }) {
+  return (
+    <svg
+      className={className}
+      viewBox="0 0 40 40"
+      fill="none"
+      xmlns="http://www.w3.org/2000/svg"
+    >
+      <path
+        fillRule="evenodd"
+        clipRule="evenodd"
+        d="M40 0H0V40H40V0ZM7.34715 27.2143V15.6577L2.976 15.987V36.7949H7.34715V32.0645L8.00582 31.5256C8.24533 31.326 8.47487 31.1264 8.69442 30.9268L12.1075 36.7949H17.0475C16.1893 35.3978 15.311 33.9906 14.4128 32.5735C13.5346 31.1563 12.6664 29.7392 11.8081 28.3221L15.8499 24.9389C15.4308 24.4399 15.0017 23.931 14.5625 23.412L13.3051 21.8552L7.34715 27.2143ZM22.2581 26.6754C22.8769 25.9169 23.6753 25.5377 24.6533 25.5377C25.272 25.5377 25.8309 25.6175 26.3299 25.7772C26.8289 25.9169 27.4177 26.1465 28.0963 26.4658L29.3238 23.3521C28.5853 22.7933 27.7371 22.4041 26.779 22.1845C25.8409 21.9649 25.0625 21.8552 24.4437 21.8552C22.0885 21.8552 20.2223 22.5537 18.845 23.9509C17.4878 25.3281 16.8092 27.1944 16.8092 29.5496C16.8092 31.9048 17.4878 33.7611 18.845 35.1183C20.2223 36.4756 22.0885 37.1542 24.4437 37.1542C25.0625 37.1542 25.8509 37.0444 26.8089 36.8249C27.767 36.6053 28.6053 36.2161 29.3238 35.6572L28.0963 32.5435C27.4177 32.8629 26.8289 33.0924 26.3299 33.2321C25.8309 33.3718 25.272 33.4417 24.6533 33.4417C23.6753 33.4417 22.8769 33.0924 22.2581 32.3938C21.6594 31.6753 21.36 30.7272 21.36 29.5496C21.36 28.372 21.6594 27.4139 22.2581 26.6754ZM36.2796 36.7949V15.6577L31.9085 15.987V36.7949H36.2796Z"
+        fill="currentColor"
+      />
+    </svg>
+  )
+}
--- a/src/components/GlobalStateProvider.tsx
+++ b/src/components/GlobalStateProvider.tsx
@ -24,9 +24,7 @@ import {
  StateFrom,
 } from 'xstate'
 import { useCommandsContext } from 'hooks/useCommandsContext'
-import { invoke } from '@tauri-apps/api'
 import { isTauri } from 'lib/isTauri'
-import { VITE_KC_API_BASE_URL } from 'env'

 type MachineContext<T extends AnyStateMachine> = {
  state: StateFrom<T>
--- a/src/components/Logs.tsx
+++ b/src/components/Logs.tsx
@ -1,8 +1,8 @@
 import ReactJson from 'react-json-view'
 import { useEffect } from 'react'
-import { useStore } from '../useStore'
 import { CollapsiblePanel, CollapsiblePanelProps } from './CollapsiblePanel'
 import { Themes } from '../lib/theme'
+import { useKclContext } from 'lang/KclSinglton'

 const ReactJsonTypeHack = ReactJson as any

@ -11,9 +11,7 @@ interface LogPanelProps extends CollapsiblePanelProps {
 }

 export const Logs = ({ theme = Themes.Light, ...props }: LogPanelProps) => {
-  const { logs } = useStore(({ logs }) => ({
-    logs,
-  }))
+  const { logs } = useKclContext()
  useEffect(() => {
    const element = document.querySelector('.console-tile')
    if (element) {
@ -47,21 +45,19 @@ export const KCLErrors = ({
  theme = Themes.Light,
  ...props
 }: LogPanelProps) => {
-  const { kclErrors } = useStore(({ kclErrors }) => ({
-    kclErrors,
-  }))
+  const { errors } = useKclContext()
  useEffect(() => {
    const element = document.querySelector('.console-tile')
    if (element) {
      element.scrollTop = element.scrollHeight - element.clientHeight
    }
-  }, [kclErrors])
+  }, [errors])
  return (
    <CollapsiblePanel {...props}>
      <div className="h-full relative">
        <div className="absolute inset-0 flex flex-col">
          <ReactJsonTypeHack
-            src={kclErrors}
+            src={errors}
            collapsed={1}
            collapseStringsAfterLength={60}
            enableClipboard={false}
--- a/src/components/MemoryPanel.test.tsx
+++ b/src/components/MemoryPanel.test.tsx
@ -14,12 +14,14 @@ describe('processMemory', () => {
  }
  const otherVar = myFn(5)

-  const theExtrude = startSketchAt([0, 0])
+  const theExtrude = startSketchOn('XY')
+    |> startProfileAt([0, 0], %)
    |> lineTo([-2.4, myVar], %)
    |> lineTo([-0.76, otherVar], %)
    |> extrude(4, %)

-  const theSketch = startSketchAt([0, 0])
+  const theSketch = startSketchOn('XY')
+    |> startProfileAt([0, 0], %)
    |> lineTo([-3.35, 0.17], %)
    |> lineTo([0.98, 5.16], %)
    |> lineTo([2.15, 4.32], %)
--- a/src/components/MemoryPanel.tsx
+++ b/src/components/MemoryPanel.tsx
@ -1,9 +1,9 @@
 import ReactJson from 'react-json-view'
 import { CollapsiblePanel, CollapsiblePanelProps } from './CollapsiblePanel'
-import { useStore } from '../useStore'
 import { useMemo } from 'react'
 import { ProgramMemory, Path, ExtrudeSurface } from '../lang/wasm'
 import { Themes } from '../lib/theme'
+import { useKclContext } from 'lang/KclSinglton'

 interface MemoryPanelProps extends CollapsiblePanelProps {
  theme?: Exclude<Themes, Themes.System>
@ -13,9 +13,7 @@ export const MemoryPanel = ({
  theme = Themes.Light,
  ...props
 }: MemoryPanelProps) => {
-  const { programMemory } = useStore((s) => ({
-    programMemory: s.programMemory,
-  }))
+  const { programMemory } = useKclContext()
  const ProcessedMemory = useMemo(
    () => processMemory(programMemory),
    [programMemory]
--- a/src/components/ModelingMachineProvider.tsx
+++ b/src/components/ModelingMachineProvider.tsx
@ -0,0 +1,459 @@
+import { useMachine } from '@xstate/react'
+import React, { createContext, useEffect, useRef } from 'react'
+import {
+  AnyStateMachine,
+  ContextFrom,
+  InterpreterFrom,
+  Prop,
+  StateFrom,
+  assign,
+} from 'xstate'
+import { SetSelections, modelingMachine } from 'machines/modelingMachine'
+import { useSetupEngineManager } from 'hooks/useSetupEngineManager'
+import { useGlobalStateContext } from 'hooks/useGlobalStateContext'
+import { isCursorInSketchCommandRange } from 'lang/util'
+import { engineCommandManager } from 'lang/std/engineConnection'
+import { v4 as uuidv4 } from 'uuid'
+import { addStartSketch } from 'lang/modifyAst'
+import { roundOff } from 'lib/utils'
+import {
+  recast,
+  parse,
+  Program,
+  VariableDeclarator,
+  PipeExpression,
+  CallExpression,
+} from 'lang/wasm'
+import { getNodeFromPath } from 'lang/queryAst'
+import {
+  addCloseToPipe,
+  addNewSketchLn,
+  compareVec2Epsilon,
+} from 'lang/std/sketch'
+import { kclManager } from 'lang/KclSinglton'
+import { applyConstraintHorzVertDistance } from './Toolbar/SetHorzVertDistance'
+import { applyConstraintAngleBetween } from './Toolbar/SetAngleBetween'
+import { applyConstraintAngleLength } from './Toolbar/setAngleLength'
+import { toast } from 'react-hot-toast'
+import { pathMapToSelections } from 'lang/util'
+import { useStore } from 'useStore'
+import { handleSelectionBatch, handleSelectionWithShift } from 'lib/selections'
+import { applyConstraintIntersect } from './Toolbar/Intersect'
+
+type MachineContext<T extends AnyStateMachine> = {
+  state: StateFrom<T>
+  context: ContextFrom<T>
+  send: Prop<InterpreterFrom<T>, 'send'>
+}
+
+export const ModelingMachineContext = createContext(
+  {} as MachineContext<typeof modelingMachine>
+)
+
+export const ModelingMachineProvider = ({
+  children,
+}: {
+  children: React.ReactNode
+}) => {
+  const { auth } = useGlobalStateContext()
+  const token = auth?.context?.token
+  const streamRef = useRef<HTMLDivElement>(null)
+  useSetupEngineManager(streamRef, token)
+
+  const { isShiftDown, editorView } = useStore((s) => ({
+    isShiftDown: s.isShiftDown,
+    editorView: s.editorView,
+  }))
+
+  // const { commands } = useCommandsContext()
+
+  // Settings machine setup
+  // const retrievedSettings = useRef(
+  // localStorage?.getItem(MODELING_PERSIST_KEY) || '{}'
+  // )
+
+  // What should we persist from modeling state? Nothing?
+  // const persistedSettings = Object.assign(
+  //   settingsMachine.initialState.context,
+  //   JSON.parse(retrievedSettings.current) as Partial<
+  //     (typeof settingsMachine)['context']
+  //   >
+  // )
+
+  const [modelingState, modelingSend] = useMachine(modelingMachine, {
+    // context: persistedSettings,
+    actions: {
+      'Modify AST': () => {},
+      'Update code selection cursors': () => {},
+      'show default planes': () => {
+        kclManager.showPlanes()
+      },
+      'create path': assign({
+        sketchEnginePathId: () => {
+          const sketchUuid = uuidv4()
+          engineCommandManager.sendSceneCommand({
+            type: 'modeling_cmd_req',
+            cmd_id: sketchUuid,
+            cmd: {
+              type: 'start_path',
+            },
+          })
+          engineCommandManager.sendSceneCommand({
+            type: 'modeling_cmd_req',
+            cmd_id: uuidv4(),
+            cmd: {
+              type: 'edit_mode_enter',
+              target: sketchUuid,
+            },
+          })
+          return sketchUuid
+        },
+      }),
+      'AST start new sketch': assign(
+        ({ sketchEnginePathId }, { data: { coords, axis, segmentId } }) => {
+          if (!axis) {
+            // Something really weird must have happened for this to happen.
+            console.error('axis is undefined for starting a new sketch')
+            return {}
+          }
+          if (!segmentId) {
+            // Something really weird must have happened for this to happen.
+            console.error('segmentId is undefined for starting a new sketch')
+            return {}
+          }
+
+          const _addStartSketch = addStartSketch(
+            kclManager.ast,
+            axis,
+            [roundOff(coords[0].x), roundOff(coords[0].y)],
+            [
+              roundOff(coords[1].x - coords[0].x),
+              roundOff(coords[1].y - coords[0].y),
+            ]
+          )
+          const _modifiedAst = _addStartSketch.modifiedAst
+          const _pathToNode = _addStartSketch.pathToNode
+          const newCode = recast(_modifiedAst)
+          const astWithUpdatedSource = parse(newCode)
+          const updatedPipeNode = getNodeFromPath<PipeExpression>(
+            astWithUpdatedSource,
+            _pathToNode
+          ).node
+          const startProfileAtCallExp = updatedPipeNode.body.find(
+            (exp) =>
+              exp.type === 'CallExpression' &&
+              exp.callee.name === 'startProfileAt'
+          )
+          if (startProfileAtCallExp)
+            engineCommandManager.artifactMap[sketchEnginePathId] = {
+              type: 'result',
+              range: [startProfileAtCallExp.start, startProfileAtCallExp.end],
+              commandType: 'extend_path',
+              data: null,
+              raw: {} as any,
+            }
+          const lineCallExp = updatedPipeNode.body.find(
+            (exp) => exp.type === 'CallExpression' && exp.callee.name === 'line'
+          )
+          if (lineCallExp)
+            engineCommandManager.artifactMap[segmentId] = {
+              type: 'result',
+              range: [lineCallExp.start, lineCallExp.end],
+              commandType: 'extend_path',
+              parentId: sketchEnginePathId,
+              data: null,
+              raw: {} as any,
+            }
+
+          kclManager.executeAstMock(astWithUpdatedSource, true)
+
+          return {
+            sketchPathToNode: _pathToNode,
+          }
+        }
+      ),
+      'AST add line segment': async (
+        { sketchPathToNode, sketchEnginePathId },
+        { data: { coords, segmentId } }
+      ) => {
+        if (!sketchPathToNode) return
+        const lastCoord = coords[coords.length - 1]
+
+        const pathInfo = await engineCommandManager.sendSceneCommand({
+          type: 'modeling_cmd_req',
+          cmd_id: uuidv4(),
+          cmd: {
+            type: 'path_get_info',
+            path_id: sketchEnginePathId,
+          },
+        })
+        const firstSegment = pathInfo?.data?.data?.segments.find(
+          (seg: any) => seg.command === 'line_to'
+        )
+        const firstSegCoords = await engineCommandManager.sendSceneCommand({
+          type: 'modeling_cmd_req',
+          cmd_id: uuidv4(),
+          cmd: {
+            type: 'curve_get_control_points',
+            curve_id: firstSegment.command_id,
+          },
+        })
+        const startPathCoord = firstSegCoords?.data?.data?.control_points[0]
+
+        const isClose = compareVec2Epsilon(
+          [startPathCoord.x, startPathCoord.y],
+          [lastCoord.x, lastCoord.y]
+        )
+
+        let _modifiedAst: Program
+        if (!isClose) {
+          const newSketchLn = addNewSketchLn({
+            node: kclManager.ast,
+            programMemory: kclManager.programMemory,
+            to: [lastCoord.x, lastCoord.y],
+            from: [coords[0].x, coords[0].y],
+            fnName: 'line',
+            pathToNode: sketchPathToNode,
+          })
+          const _modifiedAst = newSketchLn.modifiedAst
+          kclManager.executeAstMock(_modifiedAst, true).then(() => {
+            const lineCallExp = getNodeFromPath<CallExpression>(
+              kclManager.ast,
+              newSketchLn.pathToNode
+            ).node
+            if (segmentId)
+              engineCommandManager.artifactMap[segmentId] = {
+                type: 'result',
+                range: [lineCallExp.start, lineCallExp.end],
+                commandType: 'extend_path',
+                parentId: sketchEnginePathId,
+                data: null,
+                raw: {} as any,
+              }
+          })
+        } else {
+          _modifiedAst = addCloseToPipe({
+            node: kclManager.ast,
+            programMemory: kclManager.programMemory,
+            pathToNode: sketchPathToNode,
+          })
+          engineCommandManager.sendSceneCommand({
+            type: 'modeling_cmd_req',
+            cmd_id: uuidv4(),
+            cmd: { type: 'edit_mode_exit' },
+          })
+          engineCommandManager.sendSceneCommand({
+            type: 'modeling_cmd_req',
+            cmd_id: uuidv4(),
+            cmd: { type: 'default_camera_disable_sketch_mode' },
+          })
+          kclManager.executeAstMock(_modifiedAst, true)
+          // updateAst(_modifiedAst, true)
+        }
+      },
+      'sketch exit execute': () => {
+        kclManager.executeAst()
+      },
+      'set tool': () => {}, // TODO
+      'toast extrude failed': () => {
+        toast.error(
+          'Extrude failed, sketches need to be closed, or not already extruded'
+        )
+      },
+      'Set selection': assign(({ selectionRanges }, event) => {
+        if (event.type !== 'Set selection') return {} // this was needed for ts after adding 'Set selection' action to on done modal events
+        const setSelections = event.data
+        if (setSelections.selectionType === 'mirrorCodeMirrorSelections')
+          return { selectionRanges: setSelections.selection }
+        else if (setSelections.selectionType === 'otherSelection')
+          return {
+            selectionRanges: {
+              ...selectionRanges,
+              otherSelections: [setSelections.selection],
+            },
+          }
+        else if (!editorView) return {}
+        else if (setSelections.selectionType === 'singleCodeCursor') {
+          // This DOES NOT set the `selectionRanges` in xstate context
+          // instead it updates/dispatches to the editor, which in turn updates the xstate context
+          // I've found this the best way to deal with the editor without causing an infinite loop
+          // and really we want the editor to be in charge of cursor positions and for `selectionRanges` mirror it
+          // because we want to respect the user manually placing the cursor too.
+
+          // for more details on how selections see `src/lib/selections.ts`.
+          const { codeMirrorSelection, selectionRangeTypeMap } =
+            handleSelectionWithShift({
+              codeSelection: setSelections.selection,
+              currestSelections: selectionRanges,
+              isShiftDown,
+            })
+          if (codeMirrorSelection) {
+            setTimeout(() => {
+              editorView.dispatch({
+                selection: codeMirrorSelection,
+              })
+            })
+          }
+          return { selectionRangeTypeMap }
+        }
+        // This DOES NOT set the `selectionRanges` in xstate context
+        // same as comment above
+        const { codeMirrorSelection, selectionRangeTypeMap } =
+          handleSelectionBatch({
+            selections: setSelections.selection,
+          })
+        if (codeMirrorSelection) {
+          setTimeout(() => {
+            editorView.dispatch({
+              selection: codeMirrorSelection,
+            })
+          })
+        }
+        return { selectionRangeTypeMap }
+      }),
+    },
+    guards: {
+      'Selection contains axis': () => true,
+      'Selection contains edge': () => true,
+      'Selection contains face': () => true,
+      'Selection contains line': () => true,
+      'Selection contains point': () => true,
+      'Selection is not empty': () => true,
+      'Selection is one face': ({ selectionRanges }) => {
+        return !!isCursorInSketchCommandRange(
+          engineCommandManager.artifactMap,
+          selectionRanges
+        )
+      },
+    },
+    services: {
+      'Get horizontal info': async ({
+        selectionRanges,
+      }): Promise<SetSelections> => {
+        const { modifiedAst, pathToNodeMap } =
+          await applyConstraintHorzVertDistance({
+            constraint: 'setHorzDistance',
+            selectionRanges,
+          })
+        await kclManager.updateAst(modifiedAst, true)
+        return {
+          selectionType: 'completeSelection',
+          selection: pathMapToSelections(
+            kclManager.ast,
+            selectionRanges,
+            pathToNodeMap
+          ),
+        }
+      },
+      'Get vertical info': async ({
+        selectionRanges,
+      }): Promise<SetSelections> => {
+        const { modifiedAst, pathToNodeMap } =
+          await applyConstraintHorzVertDistance({
+            constraint: 'setVertDistance',
+            selectionRanges,
+          })
+        await kclManager.updateAst(modifiedAst, true)
+        return {
+          selectionType: 'completeSelection',
+          selection: pathMapToSelections(
+            kclManager.ast,
+            selectionRanges,
+            pathToNodeMap
+          ),
+        }
+      },
+      'Get angle info': async ({ selectionRanges }): Promise<SetSelections> => {
+        const { modifiedAst, pathToNodeMap } =
+          await applyConstraintAngleBetween({
+            selectionRanges,
+          })
+        await kclManager.updateAst(modifiedAst, true)
+        return {
+          selectionType: 'completeSelection',
+          selection: pathMapToSelections(
+            kclManager.ast,
+            selectionRanges,
+            pathToNodeMap
+          ),
+        }
+      },
+      'Get length info': async ({
+        selectionRanges,
+      }): Promise<SetSelections> => {
+        const { modifiedAst, pathToNodeMap } = await applyConstraintAngleLength(
+          { selectionRanges }
+        )
+        await kclManager.updateAst(modifiedAst, true)
+        return {
+          selectionType: 'completeSelection',
+          selection: pathMapToSelections(
+            kclManager.ast,
+            selectionRanges,
+            pathToNodeMap
+          ),
+        }
+      },
+      'Get perpendicular distance info': async ({
+        selectionRanges,
+      }): Promise<SetSelections> => {
+        const { modifiedAst, pathToNodeMap } = await applyConstraintIntersect({
+          selectionRanges,
+        })
+        await kclManager.updateAst(modifiedAst, true)
+        return {
+          selectionType: 'completeSelection',
+          selection: pathMapToSelections(
+            kclManager.ast,
+            selectionRanges,
+            pathToNodeMap
+          ),
+        }
+      },
+    },
+    devTools: true,
+  })
+
+  useEffect(() => {
+    engineCommandManager.onPlaneSelected((plane_id: string) => {
+      if (modelingState.nextEvents.includes('Select default plane')) {
+        modelingSend({
+          type: 'Select default plane',
+          data: { planeId: plane_id },
+        })
+      }
+    })
+  }, [modelingSend, modelingState.nextEvents])
+
+  useEffect(() => {
+    kclManager.registerExecuteCallback(() => {
+      modelingSend({ type: 'Re-execute' })
+    })
+  }, [modelingSend])
+
+  // useStateMachineCommands({
+  //   state: settingsState,
+  //   send: settingsSend,
+  //   commands,
+  //   owner: 'settings',
+  //   commandBarMeta: settingsCommandBarMeta,
+  // })
+
+  return (
+    <ModelingMachineContext.Provider
+      value={{
+        state: modelingState,
+        context: modelingState.context,
+        send: modelingSend,
+      }}
+    >
+      {/* TODO #818: maybe pass reff down to children/app.ts or render app.tsx directly?
+      since realistically it won't ever have generic children that isn't app.tsx */}
+      <div className="h-screen overflow-hidden select-none" ref={streamRef}>
+        {children}
+      </div>
+    </ModelingMachineContext.Provider>
+  )
+}
+
+export default ModelingMachineProvider
--- a/src/components/ProjectCard.tsx
+++ b/src/components/ProjectCard.tsx
@ -1,4 +1,4 @@
-import { FormEvent, useState } from 'react'
+import { FormEvent, useEffect, useState } from 'react'
 import { type ProjectWithEntryPointMetadata, paths } from '../Router'
 import { Link } from 'react-router-dom'
 import { ActionButton } from './ActionButton'
@ -8,7 +8,7 @@ import {
  faTrashAlt,
  faX,
 } from '@fortawesome/free-solid-svg-icons'
-import { FILE_EXT } from '../lib/tauriFS'
+import { FILE_EXT, getPartsCount, readProject } from '../lib/tauriFS'
 import { Dialog } from '@headlessui/react'
 import { useHotkeys } from 'react-hotkeys-hook'

@ -28,6 +28,8 @@ function ProjectCard({
  useHotkeys('esc', () => setIsEditing(false))
  const [isEditing, setIsEditing] = useState(false)
  const [isConfirmingDelete, setIsConfirmingDelete] = useState(false)
+  const [numberOfParts, setNumberOfParts] = useState(1)
+  const [numberOfFolders, setNumberOfFolders] = useState(0)

  function handleSave(e: FormEvent<HTMLFormElement>) {
    e.preventDefault()
@ -42,6 +44,17 @@ function ProjectCard({
      : date.toLocaleTimeString()
  }

+  useEffect(() => {
+    async function getNumberOfParts() {
+      const { kclFileCount, kclDirCount } = getPartsCount(
+        await readProject(project.path)
+      )
+      setNumberOfParts(kclFileCount)
+      setNumberOfFolders(kclDirCount)
+    }
+    getNumberOfParts()
+  }, [project.path])
+
  return (
    <li
      {...props}
@ -76,7 +89,7 @@ function ProjectCard({
        </form>
      ) : (
        <>
-          <div className="p-1 flex flex-col gap-2">
+          <div className="p-1 flex flex-col h-full gap-2">
            <Link
              to={`${paths.FILE}/${encodeURIComponent(project.path)}`}
              className="flex-1 text-liquid-100"
@ -84,7 +97,14 @@ function ProjectCard({
              {project.name?.replace(FILE_EXT, '')}
            </Link>
            <span className="text-chalkboard-60 text-xs">
-              Edited {getDisplayedTime(project.entrypoint_metadata.modifiedAt)}
+              {numberOfParts} part{numberOfParts === 1 ? '' : 's'}{' '}
+              {numberOfFolders > 0 &&
+                `/ ${numberOfFolders} folder${
+                  numberOfFolders === 1 ? '' : 's'
+                }`}
+            </span>
+            <span className="text-chalkboard-60 text-xs">
+              Edited {getDisplayedTime(project.entrypointMetadata.modifiedAt)}
            </span>
            <div className="absolute bottom-2 right-2 flex gap-1 items-center opacity-0 group-hover:opacity-100 group-focus-within:opacity-100">
              <ActionButton
--- a/src/components/ProjectSidebarMenu.test.tsx
+++ b/src/components/ProjectSidebarMenu.test.tsx
@ -15,7 +15,7 @@ const projectWellFormed = {
      path: '/some/path/Simple Box/main.kcl',
    },
  ],
-  entrypoint_metadata: {
+  entrypointMetadata: {
    accessedAt: now,
    blksize: 32,
    blocks: 32,
--- a/src/components/ProjectSidebarMenu.tsx
+++ b/src/components/ProjectSidebarMenu.tsx
@ -1,18 +1,22 @@
 import { Popover, Transition } from '@headlessui/react'
 import { ActionButton } from './ActionButton'
 import { faHome } from '@fortawesome/free-solid-svg-icons'
-import { ProjectWithEntryPointMetadata, paths } from '../Router'
+import { IndexLoaderData, paths } from '../Router'
 import { isTauri } from '../lib/isTauri'
 import { Link } from 'react-router-dom'
 import { ExportButton } from './ExportButton'
 import { Fragment } from 'react'
+import { FileTree } from './FileTree'
+import { sep } from '@tauri-apps/api/path'

 const ProjectSidebarMenu = ({
  project,
+  file,
  renderAsLink = false,
 }: {
  renderAsLink?: boolean
-  project?: Partial<ProjectWithEntryPointMetadata>
+  project?: IndexLoaderData['project']
+  file?: IndexLoaderData['file']
 }) => {
  return renderAsLink ? (
    <Link
@ -23,10 +27,10 @@ const ProjectSidebarMenu = ({
      <img
        src="/kitt-8bit-winking.svg"
        alt="KittyCAD App"
-        className="h-9 w-auto"
+        className="w-auto h-9"
      />
      <span
-        className="text-sm text-chalkboard-110 dark:text-chalkboard-20 whitespace-nowrap hidden lg:block"
+        className="hidden text-sm text-chalkboard-110 dark:text-chalkboard-20 whitespace-nowrap lg:block"
        data-testid="project-sidebar-link-name"
      >
        {project?.name ? project.name : 'KittyCAD Modeling App'}
@ -41,11 +45,20 @@ const ProjectSidebarMenu = ({
        <img
          src="/kitt-8bit-winking.svg"
          alt="KittyCAD App"
-          className="h-full w-auto"
+          className="w-auto h-full"
        />
-        <span className="text-sm text-chalkboard-110 dark:text-chalkboard-20 whitespace-nowrap hidden lg:block">
-          {isTauri() && project?.name ? project.name : 'KittyCAD Modeling App'}
-        </span>
+        <div className="flex flex-col items-start py-0.5">
+          <span className="hidden text-sm text-chalkboard-110 dark:text-chalkboard-20 whitespace-nowrap lg:block">
+            {isTauri() && file?.name
+              ? file.name.slice(file.name.lastIndexOf(sep) + 1)
+              : 'KittyCAD Modeling App'}
+          </span>
+          {isTauri() && project?.name && (
+            <span className="hidden text-xs text-chalkboard-70 dark:text-chalkboard-40 whitespace-nowrap lg:block">
+              {project.name}
+            </span>
+          )}
+        </div>
      </Popover.Button>
      <Transition
        enter="duration-200 ease-out"
@ -56,7 +69,7 @@ const ProjectSidebarMenu = ({
        leaveTo="opacity-0"
        as={Fragment}
      >
-        <Popover.Overlay className="fixed z-20 inset-0 bg-chalkboard-110/50" />
+        <Popover.Overlay className="fixed inset-0 z-20 bg-chalkboard-110/50" />
      </Transition>

      <Transition
@ -68,54 +81,74 @@ const ProjectSidebarMenu = ({
        leaveTo="opacity-0 -translate-x-4"
        as={Fragment}
      >
-        <Popover.Panel className="fixed inset-0 right-auto z-30 w-64 bg-chalkboard-10 dark:bg-chalkboard-100 border border-energy-100 dark:border-energy-100/50 shadow-md rounded-r-lg overflow-hidden">
-          <div className="flex items-center gap-4 px-4 py-3 bg-energy-100">
-            <img
-              src="/kitt-8bit-winking.svg"
-              alt="KittyCAD App"
-              className="h-9 w-auto"
-            />
+        <Popover.Panel
+          className="fixed inset-0 right-auto z-30 grid w-64 h-screen max-h-screen grid-cols-1 border rounded-r-lg shadow-md bg-chalkboard-10 dark:bg-chalkboard-100 border-energy-100 dark:border-energy-100/50"
+          style={{ gridTemplateRows: 'auto 1fr auto' }}
+        >
+          {({ close }) => (
+            <>
+              <div className="flex items-center gap-4 px-4 py-3 bg-energy-10/25 dark:bg-energy-110">
+                <img
+                  src="/kitt-8bit-winking.svg"
+                  alt="KittyCAD App"
+                  className="w-auto h-9"
+                />

-            <div>
-              <p
-                className="m-0 text-energy-10 text-mono"
-                data-testid="projectName"
-              >
-                {project?.name ? project.name : 'KittyCAD Modeling App'}
-              </p>
-              {project?.entrypoint_metadata && (
-                <p
-                  className="m-0 text-energy-40 text-xs"
-                  data-testid="createdAt"
-                >
-                  Created{' '}
-                  {project?.entrypoint_metadata.createdAt.toLocaleDateString()}
-                </p>
+                <div>
+                  <p
+                    className="m-0 text-chalkboard-100 dark:text-energy-10 text-mono"
+                    data-testid="projectName"
+                  >
+                    {project?.name ? project.name : 'KittyCAD Modeling App'}
+                  </p>
+                  {project?.entrypointMetadata && (
+                    <p
+                      className="m-0 text-xs text-chalkboard-100 dark:text-energy-40"
+                      data-testid="createdAt"
+                    >
+                      Created{' '}
+                      {project.entrypointMetadata.createdAt.toLocaleDateString()}
+                    </p>
+                  )}
+                </div>
+              </div>
+              {isTauri() ? (
+                <FileTree
+                  file={file}
+                  className="overflow-hidden border-0 border-y border-energy-40 dark:border-energy-70"
+                  closePanel={close}
+                />
+              ) : (
+                <div className="flex-1 overflow-hidden" />
              )}
-            </div>
-          </div>
-          <div className="p-4 flex flex-col gap-2">
-            <ExportButton
-              className={{
-                button:
-                  'border-transparent dark:border-transparent dark:hover:border-energy-60',
-              }}
-            >
-              Export Model
-            </ExportButton>
-            {isTauri() && (
-              <ActionButton
-                Element="link"
-                to={paths.HOME}
-                icon={{
-                  icon: faHome,
-                }}
-                className="border-transparent dark:border-transparent dark:hover:border-energy-60"
-              >
-                Go to Home
-              </ActionButton>
-            )}
-          </div>
+              <div className="flex flex-col gap-2 p-4 bg-energy-10/25 dark:bg-energy-110">
+                <ExportButton
+                  className={{
+                    button:
+                      'border-transparent dark:border-transparent hover:border-energy-60',
+                    icon: 'text-energy-10 dark:text-energy-120',
+                    bg: 'bg-energy-120 dark:bg-energy-10',
+                  }}
+                >
+                  Export Model
+                </ExportButton>
+                {isTauri() && (
+                  <ActionButton
+                    Element="link"
+                    to={paths.HOME}
+                    icon={{
+                      icon: faHome,
+                      iconClassName: 'text-energy-10 dark:text-energy-120',
+                      bgClassName: 'bg-energy-120 dark:bg-energy-10',
+                    }}
+                    className="border-transparent dark:border-transparent hover:border-energy-60"
+                  >
+                    Go to Home
+                  </ActionButton>
+                )}
+              </div>
+            </>
+          )}
        </Popover.Panel>
      </Transition>
    </Popover>
--- a/src/components/SetAngleLengthModal.tsx
+++ b/src/components/SetAngleLengthModal.tsx
@ -1,5 +1,6 @@
 import { Dialog, Transition } from '@headlessui/react'
 import { Fragment, useState } from 'react'
+import { type InstanceProps, create } from 'react-modal-promise'
 import { Value } from '../lang/wasm'
 import {
  AvailableVars,
@ -9,6 +10,28 @@ import {
  CreateNewVariable,
 } from './AvailableVarsHelpers'

+type ModalResolve = {
+  value: string
+  sign: number
+  valueNode: Value
+  variableName?: string
+  newVariableInsertIndex: number
+}
+
+type ModalReject = boolean
+
+type SetAngleLengthModalProps = InstanceProps<ModalResolve, ModalReject> & {
+  value: number
+  valueName: string
+  shouldCreateVariable?: boolean
+}
+
+export const createSetAngleLengthModal = create<
+  SetAngleLengthModalProps,
+  ModalResolve,
+  ModalReject
+>
+
 export const SetAngleLengthModal = ({
  isOpen,
  onResolve,
@ -16,20 +39,7 @@ export const SetAngleLengthModal = ({
  value: initialValue,
  valueName,
  shouldCreateVariable: initialShouldCreateVariable = false,
-}: {
-  isOpen: boolean
-  onResolve: (a: {
-    value: string
-    sign: number
-    valueNode: Value
-    variableName?: string
-    newVariableInsertIndex: number
-  }) => void
-  onReject: (a: any) => void
-  value: number
-  valueName: string
-  shouldCreateVariable: boolean
-}) => {
+}: SetAngleLengthModalProps) => {
  const [sign, setSign] = useState(Math.sign(Number(initialValue)))
  const [value, setValue] = useState(String(initialValue * sign))
  const [shouldCreateVariable, setShouldCreateVariable] = useState(
--- a/src/components/SetHorVertDistanceModal.tsx
+++ b/src/components/SetHorVertDistanceModal.tsx
@ -1,5 +1,6 @@
 import { Dialog, Transition } from '@headlessui/react'
 import { Fragment, useState } from 'react'
+import { type InstanceProps, create } from 'react-modal-promise'
 import { Value } from '../lang/wasm'
 import {
  AvailableVars,
@ -9,6 +10,30 @@ import {
  CreateNewVariable,
 } from './AvailableVarsHelpers'

+type ModalResolve = {
+  value: string
+  segName: string
+  valueNode: Value
+  variableName?: string
+  newVariableInsertIndex: number
+  sign: number
+}
+
+type ModalReject = boolean
+
+type GetInfoModalProps = InstanceProps<ModalResolve, ModalReject> & {
+  segName: string
+  isSegNameEditable: boolean
+  value?: number
+  initialVariableName: string
+}
+
+export const createInfoModal = create<
+  GetInfoModalProps,
+  ModalResolve,
+  ModalReject
+>
+
 export const GetInfoModal = ({
  isOpen,
  onResolve,
@ -17,25 +42,12 @@ export const GetInfoModal = ({
  isSegNameEditable,
  value: initialValue,
  initialVariableName,
-}: {
-  isOpen: boolean
-  onResolve: (a: {
-    value: string
-    segName: string
-    valueNode: Value
-    variableName?: string
-    newVariableInsertIndex: number
-    sign: number
-  }) => void
-  onReject: (a: any) => void
-  segName: string
-  isSegNameEditable: boolean
-  value: number
-  initialVariableName: string
-}) => {
+}: GetInfoModalProps) => {
  const [sign, setSign] = useState(Math.sign(Number(initialValue)))
  const [segName, setSegName] = useState(initialSegName)
-  const [value, setValue] = useState(String(Math.abs(initialValue)))
+  const [value, setValue] = useState(
+    initialValue === undefined ? '' : String(Math.abs(initialValue))
+  )
  const [shouldCreateVariable, setShouldCreateVariable] = useState(false)

  const {
--- a/src/components/SetVarNameModal.tsx
+++ b/src/components/SetVarNameModal.tsx
@ -4,19 +4,26 @@ import { useCalc, CreateNewVariable } from './AvailableVarsHelpers'
 import { ActionButton } from './ActionButton'
 import { faPlus } from '@fortawesome/free-solid-svg-icons'
 import { toast } from 'react-hot-toast'
+import { type InstanceProps, create } from 'react-modal-promise'
+
+type ModalResolve = { variableName: string }
+type ModalReject = boolean
+type SetVarNameModalProps = InstanceProps<ModalResolve, ModalReject> & {
+  valueName: string
+}
+
+export const createSetVarNameModal = create<
+  SetVarNameModalProps,
+  ModalResolve,
+  ModalReject
+>

 export const SetVarNameModal = ({
  isOpen,
  onResolve,
  onReject,
  valueName,
-}: {
-  isOpen: boolean
-  onResolve: (a: { variableName?: string }) => void
-  onReject: (a: any) => void
-  value: number
-  valueName: string
-}) => {
+}: SetVarNameModalProps) => {
  const { isNewVariableNameUnique, newVariableName, setNewVariableName } =
    useCalc({ value: '', initialVariableName: valueName })

--- a/src/components/Stream.tsx
+++ b/src/components/Stream.tsx
@ -7,28 +7,18 @@ import {
 } from 'react'
 import { v4 as uuidv4 } from 'uuid'
 import { useStore } from '../useStore'
-import { getNormalisedCoordinates, roundOff } from '../lib/utils'
+import { getNormalisedCoordinates } from '../lib/utils'
 import Loading from './Loading'
 import { cameraMouseDragGuards } from 'lib/cameraControls'
 import { useGlobalStateContext } from 'hooks/useGlobalStateContext'
 import { CameraDragInteractionType_type } from '@kittycad/lib/dist/types/src/models'
 import { Models } from '@kittycad/lib'
-import { addStartSketch } from 'lang/modifyAst'
-import {
-  addCloseToPipe,
-  addNewSketchLn,
-  compareVec2Epsilon,
-} from 'lang/std/sketch'
 import { getNodeFromPath } from 'lang/queryAst'
-import {
-  Program,
-  VariableDeclarator,
-  rangeTypeFix,
-  modifyAstForSketch,
-} from 'lang/wasm'
-import { KCLError } from 'lang/errors'
-import { KclError as RustKclError } from '../wasm-lib/kcl/bindings/KclError'
+import { VariableDeclarator, recast, parse, CallExpression } from 'lang/wasm'
 import { engineCommandManager } from '../lang/std/engineConnection'
+import { useModelingContext } from 'hooks/useModelingContext'
+import { kclManager, useKclContext } from 'lang/KclSinglton'
+import { changeSketchArguments } from 'lang/std/sketch'

 export const Stream = ({ className = '' }) => {
  const [isLoading, setIsLoading] = useState(true)
@ -40,31 +30,17 @@ export const Stream = ({ className = '' }) => {
    didDragInStream,
    setDidDragInStream,
    streamDimensions,
-    isExecuting,
-    guiMode,
-    ast,
-    updateAst,
-    setGuiMode,
-    programMemory,
  } = useStore((s) => ({
    mediaStream: s.mediaStream,
    setButtonDownInStream: s.setButtonDownInStream,
-    fileId: s.fileId,
    didDragInStream: s.didDragInStream,
    setDidDragInStream: s.setDidDragInStream,
    streamDimensions: s.streamDimensions,
-    isExecuting: s.isExecuting,
-    guiMode: s.guiMode,
-    ast: s.ast,
-    updateAst: s.updateAst,
-    setGuiMode: s.setGuiMode,
-    programMemory: s.programMemory,
  }))
-  const {
-    settings: {
-      context: { cameraControls },
-    },
-  } = useGlobalStateContext()
+  const { settings } = useGlobalStateContext()
+  const cameraControls = settings?.context?.cameraControls
+  const { send, state, context } = useModelingContext()
+  const { isExecuting } = useKclContext()

  useEffect(() => {
    if (
@ -108,7 +84,13 @@ export const Stream = ({ className = '' }) => {
      interaction = 'zoom'
    }

-    if (guiMode.mode === 'sketch' && guiMode.sketchMode === ('move' as any)) {
+    if (state.matches('Sketch.Move Tool')) {
+      if (
+        state.matches('Sketch.Move Tool.No move') ||
+        state.matches('Sketch.Move Tool.Move with execute')
+      ) {
+        return
+      }
      engineCommandManager.sendSceneCommand({
        type: 'modeling_cmd_req',
        cmd: {
@ -117,12 +99,7 @@ export const Stream = ({ className = '' }) => {
        },
        cmd_id: newId,
      })
-    } else if (
-      !(
-        guiMode.mode === 'sketch' &&
-        guiMode.sketchMode === ('sketch_line' as any)
-      )
-    ) {
+    } else if (!state.matches('Sketch.Line Tool')) {
      engineCommandManager.sendSceneCommand({
        type: 'modeling_cmd_req',
        cmd: {
@ -178,200 +155,208 @@ export const Stream = ({ className = '' }) => {
      cmd_id: newCmdId,
    }

-    if (!didDragInStream) {
-      engineCommandManager.sendSceneCommand({
-        type: 'modeling_cmd_req',
-        cmd: {
-          type: 'select_with_point',
-          selection_type: 'add',
-          selected_at_window: { x, y },
-        },
-        cmd_id: uuidv4(),
-      })
-    }
-
-    if (!didDragInStream && guiMode.mode === 'default') {
+    if (!didDragInStream && state.matches('Sketch no face')) {
      command.cmd = {
        type: 'select_with_point',
        selection_type: 'add',
        selected_at_window: { x, y },
      }
-    } else if (
-      (!didDragInStream &&
-        guiMode.mode === 'sketch' &&
-        ['move', 'select'].includes(guiMode.sketchMode)) ||
-      (guiMode.mode === 'sketch' &&
-        guiMode.sketchMode === ('sketch_line' as any))
-    ) {
+      engineCommandManager.sendSceneCommand(command)
+    } else if (!didDragInStream && state.matches('Sketch.Line Tool')) {
      command.cmd = {
        type: 'mouse_click',
        window: { x, y },
      }
+      engineCommandManager.sendSceneCommand(command).then(async (resp) => {
+        const entities_modified = resp?.data?.data?.entities_modified
+        if (!entities_modified) return
+        if (state.matches('Sketch.Line Tool.No Points')) {
+          send('Add point')
+        } else if (state.matches('Sketch.Line Tool.Point Added')) {
+          const curve = await engineCommandManager.sendSceneCommand({
+            type: 'modeling_cmd_req',
+            cmd_id: uuidv4(),
+            cmd: {
+              type: 'curve_get_control_points',
+              curve_id: entities_modified[0],
+            },
+          })
+          const coords: { x: number; y: number }[] =
+            curve.data.data.control_points
+          // We need the normal for the plane we are on.
+          const plane = await engineCommandManager.sendSceneCommand({
+            type: 'modeling_cmd_req',
+            cmd_id: uuidv4(),
+            cmd: {
+              type: 'get_sketch_mode_plane',
+            },
+          })
+          const z_axis = plane.data.data.z_axis
+
+          // Get the current axis.
+          let currentAxis: 'xy' | 'xz' | 'yz' | '-xy' | '-xz' | '-yz' | null =
+            null
+          if (context.sketchPlaneId === kclManager.getPlaneId('xy')) {
+            if (z_axis.z === -1) {
+              currentAxis = '-xy'
+            } else {
+              currentAxis = 'xy'
+            }
+          } else if (context.sketchPlaneId === kclManager.getPlaneId('yz')) {
+            if (z_axis.x === -1) {
+              currentAxis = '-yz'
+            } else {
+              currentAxis = 'yz'
+            }
+          } else if (context.sketchPlaneId === kclManager.getPlaneId('xz')) {
+            if (z_axis.y === -1) {
+              currentAxis = '-xz'
+            } else {
+              currentAxis = 'xz'
+            }
+          }
+
+          send({
+            type: 'Add point',
+            data: {
+              coords,
+              axis: currentAxis,
+              segmentId: entities_modified[0],
+            },
+          })
+        } else if (state.matches('Sketch.Line Tool.Segment Added')) {
+          const curve = await engineCommandManager.sendSceneCommand({
+            type: 'modeling_cmd_req',
+            cmd_id: uuidv4(),
+            cmd: {
+              type: 'curve_get_control_points',
+              curve_id: entities_modified[0],
+            },
+          })
+          const coords: { x: number; y: number }[] =
+            curve.data.data.control_points
+          send({
+            type: 'Add point',
+            data: { coords, axis: null, segmentId: entities_modified[0] },
+          })
+        }
+      })
    } else if (
-      guiMode.mode === 'sketch' &&
-      guiMode.sketchMode === ('move' as any)
+      !didDragInStream &&
+      (state.matches('Sketch.SketchIdle') ||
+        state.matches('idle') ||
+        state.matches('awaiting selection'))
    ) {
+      command.cmd = {
+        type: 'select_with_point',
+        selected_at_window: { x, y },
+        selection_type: 'add',
+      }
+      engineCommandManager.sendSceneCommand(command)
+    } else if (!didDragInStream && state.matches('Sketch.Move Tool')) {
+      command.cmd = {
+        type: 'select_with_point',
+        selected_at_window: { x, y },
+        selection_type: 'add',
+      }
+      engineCommandManager.sendSceneCommand(command)
+    } else if (didDragInStream && state.matches('Sketch.Move Tool')) {
      command.cmd = {
        type: 'handle_mouse_drag_end',
        window: { x, y },
      }
-    }
-    engineCommandManager.sendSceneCommand(command).then(async (resp) => {
-      if (!(guiMode.mode === 'sketch')) return
-
-      if (guiMode.sketchMode === 'selectFace') return
-
-      // Check if the sketch group already exists.
-      const varDec = getNodeFromPath<VariableDeclarator>(
-        ast,
-        guiMode.pathToNode,
-        'VariableDeclarator'
-      ).node
-      const variableName = varDec?.id?.name
-      const sketchGroup = programMemory.root[variableName]
-      const isEditingExistingSketch =
-        sketchGroup?.type === 'SketchGroup' && sketchGroup.value.length
-      let sketchGroupId = ''
-      if (sketchGroup && sketchGroup.type === 'SketchGroup') {
-        sketchGroupId = sketchGroup.id
-      }
-
-      if (
-        guiMode.sketchMode === ('move' as any as 'line') &&
-        command.cmd.type === 'handle_mouse_drag_end'
-      ) {
-        // Let's get the updated ast.
-        if (sketchGroupId === '') return
-        // We have a problem if we do not have an id for the sketch group.
-        if (
-          guiMode.pathId === undefined ||
-          guiMode.pathId === null ||
-          guiMode.pathId === ''
-        )
-          return
-
-        let engineId = guiMode.pathId
-
-        const updatedAst: Program = await modifyAstForSketch(
-          engineCommandManager,
-          ast,
-          variableName,
-          engineId
-        )
-
-        updateAst(updatedAst, false)
-        return
-      }
-
-      if (command?.cmd?.type !== 'mouse_click' || !ast) return
-
-      if (!(guiMode.sketchMode === ('sketch_line' as any as 'line'))) return
-
-      if (
-        resp?.data?.data?.entities_modified?.length &&
-        guiMode.waitingFirstClick &&
-        !isEditingExistingSketch
-      ) {
-        const curve = await engineCommandManager.sendSceneCommand({
-          type: 'modeling_cmd_req',
-          cmd_id: uuidv4(),
-          cmd: {
-            type: 'curve_get_control_points',
-            curve_id: resp?.data?.data?.entities_modified[0],
-          },
-        })
-        const coords: { x: number; y: number }[] =
-          curve.data.data.control_points
-        const _addStartSketch = addStartSketch(
-          ast,
-          [roundOff(coords[0].x), roundOff(coords[0].y)],
-          [
-            roundOff(coords[1].x - coords[0].x),
-            roundOff(coords[1].y - coords[0].y),
-          ]
-        )
-        const _modifiedAst = _addStartSketch.modifiedAst
-        const _pathToNode = _addStartSketch.pathToNode
-
-        // We need to update the guiMode with the right pathId so that we can
-        // move lines later and send the right sketch id to the engine.
-        for (const [id, artifact] of Object.entries(
-          engineCommandManager.artifactMap
-        )) {
-          if (artifact.commandType === 'start_path') {
-            guiMode.pathId = id
-          }
-        }
-
-        setGuiMode({
-          ...guiMode,
-          pathToNode: _pathToNode,
-          waitingFirstClick: false,
-        })
-        updateAst(_modifiedAst, false)
-      } else if (
-        resp?.data?.data?.entities_modified?.length &&
-        (!guiMode.waitingFirstClick || isEditingExistingSketch)
-      ) {
-        const curve = await engineCommandManager.sendSceneCommand({
-          type: 'modeling_cmd_req',
-          cmd_id: uuidv4(),
-          cmd: {
-            type: 'curve_get_control_points',
-            curve_id: resp?.data?.data?.entities_modified[0],
-          },
-        })
-        const coords: { x: number; y: number }[] =
-          curve.data.data.control_points
-
-        const { node: varDec } = getNodeFromPath<VariableDeclarator>(
-          ast,
-          guiMode.pathToNode,
+      engineCommandManager.sendSceneCommand(command).then(async () => {
+        if (!context.sketchPathToNode) return
+        const varDec = getNodeFromPath<VariableDeclarator>(
+          kclManager.ast,
+          context.sketchPathToNode,
          'VariableDeclarator'
-        )
-        const variableName = varDec.id.name
-        const sketchGroup = programMemory.root[variableName]
-        if (!sketchGroup || sketchGroup.type !== 'SketchGroup') return
-        const initialCoords = sketchGroup.value[0].from
-
-        const isClose = compareVec2Epsilon(initialCoords, [
-          coords[1].x,
-          coords[1].y,
-        ])
-
-        let _modifiedAst: Program
-        if (!isClose) {
-          _modifiedAst = addNewSketchLn({
-            node: ast,
-            programMemory,
-            to: [coords[1].x, coords[1].y],
-            fnName: 'line',
-            pathToNode: guiMode.pathToNode,
-          }).modifiedAst
-          updateAst(_modifiedAst, false)
-        } else {
-          _modifiedAst = addCloseToPipe({
-            node: ast,
-            programMemory,
-            pathToNode: guiMode.pathToNode,
-          })
-          setGuiMode({
-            mode: 'default',
-          })
-          engineCommandManager.sendSceneCommand({
-            type: 'modeling_cmd_req',
-            cmd_id: uuidv4(),
-            cmd: { type: 'edit_mode_exit' },
-          })
-          engineCommandManager.sendSceneCommand({
-            type: 'modeling_cmd_req',
-            cmd_id: uuidv4(),
-            cmd: { type: 'default_camera_disable_sketch_mode' },
-          })
-          updateAst(_modifiedAst, true)
+        ).node
+        // Get the current plane string for plane we are on.
+        let currentPlaneString = ''
+        if (context.sketchPlaneId === kclManager.getPlaneId('xy')) {
+          currentPlaneString = 'XY'
+        } else if (context.sketchPlaneId === kclManager.getPlaneId('yz')) {
+          currentPlaneString = 'YZ'
+        } else if (context.sketchPlaneId === kclManager.getPlaneId('xz')) {
+          currentPlaneString = 'XZ'
        }
-      }
-    })
+
+        // Do not supporting editing/moving lines on a non-default plane.
+        // Eventually we can support this but for now we will just throw an
+        // error.
+        if (currentPlaneString === '') return
+
+        const pathInfo = await engineCommandManager.sendSceneCommand({
+          type: 'modeling_cmd_req',
+          cmd_id: uuidv4(),
+          cmd: {
+            type: 'path_get_info',
+            path_id: context.sketchEnginePathId,
+          },
+        })
+        const segmentsWithMappings = (
+          pathInfo?.data?.data?.segments as { command_id: string }[]
+        )
+          .filter(({ command_id }) => {
+            return command_id && engineCommandManager.artifactMap[command_id]
+          })
+          .map(({ command_id }) => command_id)
+        const segment2dInfo = await Promise.all(
+          segmentsWithMappings.map(async (segmentId) => {
+            const response = await engineCommandManager.sendSceneCommand({
+              type: 'modeling_cmd_req',
+              cmd_id: uuidv4(),
+              cmd: {
+                type: 'curve_get_control_points',
+                curve_id: segmentId,
+              },
+            })
+            const controlPoints: [
+              { x: number; y: number },
+              { x: number; y: number }
+            ] = response.data.data.control_points
+            return {
+              controlPoints,
+              segmentId,
+            }
+          })
+        )
+
+        let modifiedAst = { ...kclManager.ast }
+        let code = kclManager.code
+        for (const controlPoint of segment2dInfo) {
+          const range =
+            engineCommandManager.artifactMap[controlPoint.segmentId].range
+          if (!range) continue
+          const from = controlPoint.controlPoints[0]
+          const to = controlPoint.controlPoints[1]
+          const modded = changeSketchArguments(
+            modifiedAst,
+            kclManager.programMemory,
+            range,
+            [to.x, to.y],
+            [from.x, from.y]
+          )
+          modifiedAst = modded.modifiedAst
+
+          // update artifact map ranges now that we have updated the ast.
+          code = recast(modded.modifiedAst)
+          const astWithCurrentRanges = parse(code)
+          const updateNode = getNodeFromPath<CallExpression>(
+            astWithCurrentRanges,
+            modded.pathToNode
+          ).node
+          engineCommandManager.artifactMap[controlPoint.segmentId].range = [
+            updateNode.start,
+            updateNode.end,
+          ]
+        }
+
+        kclManager.executeAstMock(modifiedAst, true)
+      })
+    }
+
    setDidDragInStream(false)
    setClickCoords(undefined)
  }
@ -402,7 +387,8 @@ export const Stream = ({ className = '' }) => {
        onWheel={handleScroll}
        onPlay={() => setIsLoading(false)}
        onMouseMoveCapture={handleMouseMove}
-        className={`w-full h-full ${isExecuting && 'blur-md'}`}
+        className={`w-full cursor-pointer h-full ${isExecuting && 'blur-md'}`}
+        disablePictureInPicture
        style={{ transitionDuration: '200ms', transitionProperty: 'filter' }}
      />
      {isLoading && (
--- a/src/components/TextEditor.tsx
+++ b/src/components/TextEditor.tsx
@ -13,24 +13,26 @@ import { useConvertToVariable } from 'hooks/useToolbarGuards'
 import { Themes } from 'lib/theme'
 import { useMemo } from 'react'
 import { linter, lintGutter } from '@codemirror/lint'
-import { Selections, useStore } from 'useStore'
+import { useStore } from 'useStore'
+import { processCodeMirrorRanges } from 'lib/selections'
 import { LanguageServerClient } from 'editor/lsp'
 import kclLanguage from 'editor/lsp/language'
 import { isTauri } from 'lib/isTauri'
 import { useParams } from 'react-router-dom'
 import { writeTextFile } from '@tauri-apps/api/fs'
-import { PROJECT_ENTRYPOINT } from 'lib/tauriFS'
 import { toast } from 'react-hot-toast'
 import {
  EditorView,
  addLineHighlight,
  lineHighlightField,
 } from 'editor/highlightextension'
-import { isOverlap, roundOff } from 'lib/utils'
+import { roundOff } from 'lib/utils'
 import { kclErrToDiagnostic } from 'lang/errors'
 import { CSSRuleObject } from 'tailwindcss/types/config'
+import { useModelingContext } from 'hooks/useModelingContext'
 import interact from '@replit/codemirror-interact'
 import { engineCommandManager } from '../lang/std/engineConnection'
+import { kclManager, useKclContext } from 'lang/KclSinglton'

 export const editorShortcutMeta = {
  formatCode: {
@ -49,35 +51,22 @@ export const TextEditor = ({
  theme: Themes.Light | Themes.Dark
 }) => {
  const pathParams = useParams()
-  const {
-    code,
-    deferredSetCode,
-    editorView,
-    formatCode,
-    isLSPServerReady,
-    selectionRanges,
-    selectionRangeTypeMap,
-    setEditorView,
-    setIsLSPServerReady,
-    setSelectionRanges,
-  } = useStore((s) => ({
-    code: s.code,
-    deferredSetCode: s.deferredSetCode,
-    editorView: s.editorView,
-    formatCode: s.formatCode,
-    isLSPServerReady: s.isLSPServerReady,
-    selectionRanges: s.selectionRanges,
-    selectionRangeTypeMap: s.selectionRangeTypeMap,
-    setEditorView: s.setEditorView,
-    setIsLSPServerReady: s.setIsLSPServerReady,
-    setSelectionRanges: s.setSelectionRanges,
-  }))
+  const { editorView, isLSPServerReady, setEditorView, setIsLSPServerReady } =
+    useStore((s) => ({
+      editorView: s.editorView,
+      isLSPServerReady: s.isLSPServerReady,
+      setEditorView: s.setEditorView,
+      setIsLSPServerReady: s.setIsLSPServerReady,
+    }))
+  const { code, errors } = useKclContext()

  const {
-    settings: {
-      context: { textWrapping },
-    },
-  } = useGlobalStateContext()
+    context: { selectionRanges, selectionRangeTypeMap },
+    send,
+  } = useModelingContext()
+
+  const { settings: { context: { textWrapping } = {} } = {} } =
+    useGlobalStateContext()
  const { setCommandBarOpen } = useCommandsContext()
  const { enable: convertEnabled, handleClick: convertCallback } =
    useConvertToVariable()
@ -122,18 +111,16 @@ export const TextEditor = ({
  }, [lspClient, isLSPServerReady])

  // const onChange = React.useCallback((value: string, viewUpdate: ViewUpdate) => {
-  const onChange = (value: string, viewUpdate: ViewUpdate) => {
-    deferredSetCode(value)
+  const onChange = (newCode: string) => {
+    kclManager.setCodeAndExecute(newCode)
    if (isTauri() && pathParams.id) {
      // Save the file to disk
      // Note that PROJECT_ENTRYPOINT is hardcoded until we support multiple files
-      writeTextFile(pathParams.id + '/' + PROJECT_ENTRYPOINT, value).catch(
-        (err) => {
-          // TODO: add Sentry per GH issue #254 (https://github.com/KittyCAD/modeling-app/issues/254)
-          console.error('error saving file', err)
-          toast.error('Error saving file, please check file permissions')
-        }
-      )
+      writeTextFile(pathParams.id, newCode).catch((err) => {
+        // TODO: add Sentry per GH issue #254 (https://github.com/KittyCAD/modeling-app/issues/254)
+        console.error('error saving file', err)
+        toast.error('Error saving file, please check file permissions')
+      })
    }
    if (editorView) {
      editorView?.dispatch({ effects: addLineHighlight.of([0, 0]) })
@ -143,57 +130,17 @@ export const TextEditor = ({
    if (!editorView) {
      setEditorView(viewUpdate.view)
    }
-    const ranges = viewUpdate.state.selection.ranges
+    const eventInfo = processCodeMirrorRanges({
+      codeMirrorRanges: viewUpdate.state.selection.ranges,
+      selectionRanges,
+      selectionRangeTypeMap,
+    })
+    if (!eventInfo) return

-    const isChange =
-      ranges.length !== selectionRanges.codeBasedSelections.length ||
-      ranges.some(({ from, to }, i) => {
-        return (
-          from !== selectionRanges.codeBasedSelections[i].range[0] ||
-          to !== selectionRanges.codeBasedSelections[i].range[1]
-        )
-      })
-
-    if (!isChange) return
-    const codeBasedSelections: Selections['codeBasedSelections'] = ranges.map(
-      ({ from, to }) => {
-        if (selectionRangeTypeMap[to]) {
-          return {
-            type: selectionRangeTypeMap[to],
-            range: [from, to],
-          }
-        }
-        return {
-          type: 'default',
-          range: [from, to],
-        }
-      }
+    send(eventInfo.modelingEvent)
+    eventInfo.engineEvents.forEach((event) =>
+      engineCommandManager.sendSceneCommand(event)
    )
-    const idBasedSelections = codeBasedSelections
-      .map(({ type, range }) => {
-        const hasOverlap = Object.entries(
-          engineCommandManager.sourceRangeMap || {}
-        ).filter(([_, sourceRange]) => {
-          return isOverlap(sourceRange, range)
-        })
-        if (hasOverlap.length) {
-          return {
-            type,
-            id: hasOverlap[0][0],
-          }
-        }
-      })
-      .filter(Boolean) as any
-
-    engineCommandManager.cusorsSelected({
-      otherSelections: [],
-      idBasedSelections,
-    })
-
-    setSelectionRanges({
-      otherSelections: [],
-      codeBasedSelections,
-    })
  }

  const editorExtensions = useMemo(() => {
@ -210,7 +157,7 @@ export const TextEditor = ({
        {
          key: editorShortcutMeta.formatCode.codeMirror,
          run: () => {
-            formatCode()
+            kclManager.format()
            return true
          },
        },
@ -234,7 +181,7 @@ export const TextEditor = ({
      extensions.push(
        lintGutter(),
        linter((_view) => {
-          return kclErrToDiagnostic(useStore.getState().kclErrors)
+          return kclErrToDiagnostic(errors)
        }),
        interact({
          rules: [
@ -273,7 +220,7 @@ export const TextEditor = ({
    }

    return extensions
-  }, [kclLSP, textWrapping])
+  }, [kclLSP, textWrapping, convertCallback])

  return (
    <div
--- a/src/components/Toolbar/EqualAngle.tsx
+++ b/src/components/Toolbar/EqualAngle.tsx
@ -1,105 +1,79 @@
-import { useState, useEffect } from 'react'
-import { toolTips, useStore } from '../../useStore'
-import { Value, VariableDeclarator } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { Selections } from 'lib/selections'
+import { Program, Value, VariableDeclarator } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
 } from '../../lang/queryAst'
 import { isSketchVariablesLinked } from '../../lang/std/sketchConstraints'
 import {
-  TransformInfo,
  transformSecondarySketchLinesTagFirst,
  getTransformInfos,
+  PathToNodeMap,
 } from '../../lang/std/sketchcombos'
-import { updateCursors } from '../../lang/util'
-import { ActionIcon } from 'components/ActionIcon'
-import { sketchButtonClassnames } from 'Toolbar'
+import { kclManager } from 'lang/KclSinglton'

-export const EqualAngle = () => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const [enableEqual, setEnableEqual] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  useEffect(() => {
-    if (!ast) return
-    const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) => getNodeFromPath<Value>(ast, pathToNode).node
-    )
-    const varDecs = paths.map(
-      (pathToNode) =>
-        getNodeFromPath<VariableDeclarator>(
-          ast,
-          pathToNode,
-          'VariableDeclarator'
-        )?.node
-    )
-    const primaryLine = varDecs[0]
-    const secondaryVarDecs = varDecs.slice(1)
-    const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
-      isSketchVariablesLinked(secondary, primaryLine, ast)
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        toolTips.includes(node.callee.name as any)
-    )
-
-    const theTransforms = getTransformInfos(
-      {
-        ...selectionRanges,
-        codeBasedSelections: selectionRanges.codeBasedSelections.slice(1),
-      },
-      ast,
-      'equalAngle'
-    )
-    setTransformInfos(theTransforms)
-
-    const _enableEqual =
-      !!secondaryVarDecs.length &&
-      isAllTooltips &&
-      isOthersLinkedToPrimary &&
-      theTransforms.every(Boolean)
-    setEnableEqual(_enableEqual)
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  return (
-    <button
-      onClick={async () => {
-        if (!(transformInfos && ast)) return
-        const { modifiedAst, pathToNodeMap } =
-          transformSecondarySketchLinesTagFirst({
-            ast,
-            selectionRanges,
-            transformInfos,
-            programMemory,
-          })
-        updateAst(modifiedAst, true, {
-          callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-        })
-      }}
-      disabled={!enableEqual}
-      title="Parallel (or equal angle)"
-      className="group"
-    >
-      <ActionIcon
-        icon="parallel"
-        className="!p-0.5"
-        bgClassName={sketchButtonClassnames.background}
-        iconClassName={sketchButtonClassnames.icon}
-        size="md"
-      />
-      Parallel
-    </button>
+export function equalAngleInfo({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}) {
+  const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+  const nodes = paths.map(
+    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
+  )
+  const varDecs = paths.map(
+    (pathToNode) =>
+      getNodeFromPath<VariableDeclarator>(
+        kclManager.ast,
+        pathToNode,
+        'VariableDeclarator'
+      )?.node
+  )
+  const primaryLine = varDecs[0]
+  const secondaryVarDecs = varDecs.slice(1)
+  const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
+    isSketchVariablesLinked(secondary, primaryLine, kclManager.ast)
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      toolTips.includes(node.callee.name as any)
+  )
+
+  const transforms = getTransformInfos(
+    {
+      ...selectionRanges,
+      codeBasedSelections: selectionRanges.codeBasedSelections.slice(1),
+    },
+    kclManager.ast,
+    'equalAngle'
+  )
+
+  const enabled =
+    !!secondaryVarDecs.length &&
+    isAllTooltips &&
+    isOthersLinkedToPrimary &&
+    transforms.every(Boolean)
+  return { enabled, transforms }
+}
+
+export function applyConstraintEqualAngle({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}): {
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+} {
+  const { transforms } = equalAngleInfo({ selectionRanges })
+  const { modifiedAst, pathToNodeMap } = transformSecondarySketchLinesTagFirst({
+    ast: kclManager.ast,
+    selectionRanges,
+    transformInfos: transforms,
+    programMemory: kclManager.programMemory,
+  })
+  return { modifiedAst, pathToNodeMap }
 }
--- a/src/components/Toolbar/EqualLength.tsx
+++ b/src/components/Toolbar/EqualLength.tsx
@ -1,105 +1,83 @@
-import { useState, useEffect } from 'react'
-import { toolTips, useStore } from '../../useStore'
-import { Value, VariableDeclarator } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { Selections } from 'lib/selections'
+import { Program, Value, VariableDeclarator } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
 } from '../../lang/queryAst'
 import { isSketchVariablesLinked } from '../../lang/std/sketchConstraints'
 import {
-  TransformInfo,
  transformSecondarySketchLinesTagFirst,
  getTransformInfos,
+  PathToNodeMap,
 } from '../../lang/std/sketchcombos'
-import { updateCursors } from '../../lang/util'
-import { ActionIcon } from 'components/ActionIcon'
-import { sketchButtonClassnames } from 'Toolbar'
+import { kclManager } from 'lang/KclSinglton'

-export const EqualLength = () => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const [enableEqual, setEnableEqual] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  useEffect(() => {
-    if (!ast) return
-    const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) => getNodeFromPath<Value>(ast, pathToNode).node
-    )
-    const varDecs = paths.map(
-      (pathToNode) =>
-        getNodeFromPath<VariableDeclarator>(
-          ast,
-          pathToNode,
-          'VariableDeclarator'
-        )?.node
-    )
-    const primaryLine = varDecs[0]
-    const secondaryVarDecs = varDecs.slice(1)
-    const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
-      isSketchVariablesLinked(secondary, primaryLine, ast)
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        toolTips.includes(node.callee.name as any)
-    )
-
-    const theTransforms = getTransformInfos(
-      {
-        ...selectionRanges,
-        codeBasedSelections: selectionRanges.codeBasedSelections.slice(1),
-      },
-      ast,
-      'equalLength'
-    )
-    setTransformInfos(theTransforms)
-
-    const _enableEqual =
-      !!secondaryVarDecs.length &&
-      isAllTooltips &&
-      isOthersLinkedToPrimary &&
-      theTransforms.every(Boolean)
-    setEnableEqual(_enableEqual)
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  return (
-    <button
-      onClick={() => {
-        if (!(transformInfos && ast)) return
-        const { modifiedAst, pathToNodeMap } =
-          transformSecondarySketchLinesTagFirst({
-            ast,
-            selectionRanges,
-            transformInfos,
-            programMemory,
-          })
-        updateAst(modifiedAst, true, {
-          callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-        })
-      }}
-      disabled={!enableEqual}
-      className="group"
-      title="Equal Length"
-    >
-      <ActionIcon
-        icon="equal"
-        className="!p-0.5"
-        bgClassName={sketchButtonClassnames.background}
-        iconClassName={sketchButtonClassnames.icon}
-        size="md"
-      />
-      Equal Length
-    </button>
+export function setEqualLengthInfo({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}) {
+  const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+  const nodes = paths.map(
+    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
+  )
+  const varDecs = paths.map(
+    (pathToNode) =>
+      getNodeFromPath<VariableDeclarator>(
+        kclManager.ast,
+        pathToNode,
+        'VariableDeclarator'
+      )?.node
+  )
+  const primaryLine = varDecs[0]
+  const secondaryVarDecs = varDecs.slice(1)
+  const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
+    isSketchVariablesLinked(secondary, primaryLine, kclManager.ast)
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      toolTips.includes(node.callee.name as any)
+  )
+
+  const transforms = getTransformInfos(
+    {
+      ...selectionRanges,
+      codeBasedSelections: selectionRanges.codeBasedSelections.slice(1),
+    },
+    kclManager.ast,
+    'equalLength'
+  )
+
+  const enabled =
+    !!secondaryVarDecs.length &&
+    isAllTooltips &&
+    isOthersLinkedToPrimary &&
+    transforms.every(Boolean)
+
+  return { enabled, transforms }
+}
+
+export function applyConstraintEqualLength({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}): {
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+} {
+  const { enabled, transforms } = setEqualLengthInfo({ selectionRanges })
+  const { modifiedAst, pathToNodeMap } = transformSecondarySketchLinesTagFirst({
+    ast: kclManager.ast,
+    selectionRanges,
+    transformInfos: transforms,
+    programMemory: kclManager.programMemory,
+  })
+  return { modifiedAst, pathToNodeMap }
+  // kclManager.updateAst(modifiedAst, true, {
+  //   // callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
+  // })
 }
--- a/src/components/Toolbar/HorzVert.tsx
+++ b/src/components/Toolbar/HorzVert.tsx
@ -1,84 +1,57 @@
-import { useState, useEffect } from 'react'
-import { toolTips, useStore } from '../../useStore'
-import { Value } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { Selections } from 'lib/selections'
+import { Program, ProgramMemory, Value } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
 } from '../../lang/queryAst'
 import {
-  TransformInfo,
+  PathToNodeMap,
  getTransformInfos,
  transformAstSketchLines,
 } from '../../lang/std/sketchcombos'
-import { updateCursors } from '../../lang/util'
-import { ActionIcon } from 'components/ActionIcon'
-import { sketchButtonClassnames } from 'Toolbar'
+import { kclManager } from 'lang/KclSinglton'

-export const HorzVert = ({
-  horOrVert,
-}: {
+export function horzVertInfo(
+  selectionRanges: Selections,
  horOrVert: 'vertical' | 'horizontal'
-}) => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const [enableHorz, setEnableHorz] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  useEffect(() => {
-    if (!ast) return
-    const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) => getNodeFromPath<Value>(ast, pathToNode).node
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        toolTips.includes(node.callee.name as any)
-    )
-
-    const theTransforms = getTransformInfos(selectionRanges, ast, horOrVert)
-    setTransformInfos(theTransforms)
-
-    const _enableHorz = isAllTooltips && theTransforms.every(Boolean)
-    setEnableHorz(_enableHorz)
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  return (
-    <button
-      onClick={() => {
-        if (!transformInfos || !ast) return
-        const { modifiedAst, pathToNodeMap } = transformAstSketchLines({
-          ast,
-          selectionRanges,
-          transformInfos,
-          programMemory,
-          referenceSegName: '',
-        })
-        updateAst(modifiedAst, true, {
-          callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-        })
-      }}
-      disabled={!enableHorz}
-      className="group"
-      title={horOrVert === 'horizontal' ? 'Horizontal' : 'Vertical'}
-    >
-      <ActionIcon
-        icon={horOrVert === 'horizontal' ? 'horizontal' : 'vertical'}
-        className="!p-0.5"
-        bgClassName={sketchButtonClassnames.background}
-        iconClassName={sketchButtonClassnames.icon}
-        size="md"
-      />
-      {horOrVert === 'horizontal' ? 'Horizontal' : 'Vertical'}
-    </button>
+) {
+  const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+  const nodes = paths.map(
+    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      toolTips.includes(node.callee.name as any)
+  )
+
+  const theTransforms = getTransformInfos(
+    selectionRanges,
+    kclManager.ast,
+    horOrVert
+  )
+  const _enableHorz = isAllTooltips && theTransforms.every(Boolean)
+  return { enabled: _enableHorz, transforms: theTransforms }
+}
+
+export function applyConstraintHorzVert(
+  selectionRanges: Selections,
+  horOrVert: 'vertical' | 'horizontal',
+  ast: Program,
+  programMemory: ProgramMemory
+): {
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+} {
+  const transformInfos = horzVertInfo(selectionRanges, horOrVert).transforms
+  return transformAstSketchLines({
+    ast,
+    selectionRanges,
+    transformInfos,
+    programMemory,
+    referenceSegName: '',
+  })
 }
--- a/src/components/Toolbar/Intersect.tsx
+++ b/src/components/Toolbar/Intersect.tsx
@ -1,7 +1,6 @@
-import { useState, useEffect } from 'react'
-import { create } from 'react-modal-promise'
-import { toolTips, useStore } from '../../useStore'
-import { BinaryPart, Value, VariableDeclarator } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { Selections } from 'lib/selections'
+import { BinaryPart, Program, Value, VariableDeclarator } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
@ -9,184 +8,170 @@ import {
 } from '../../lang/queryAst'
 import { isSketchVariablesLinked } from '../../lang/std/sketchConstraints'
 import {
-  TransformInfo,
  transformSecondarySketchLinesTagFirst,
  getTransformInfos,
+  PathToNodeMap,
 } from '../../lang/std/sketchcombos'
-import { GetInfoModal } from '../SetHorVertDistanceModal'
+import { GetInfoModal, createInfoModal } from '../SetHorVertDistanceModal'
 import { createVariableDeclaration } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
-import { updateCursors } from '../../lang/util'
+import { kclManager } from 'lang/KclSinglton'

-const getModalInfo = create(GetInfoModal as any)
+const getModalInfo = createInfoModal(GetInfoModal)

-export const Intersect = () => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const [enable, setEnable] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  const [forecdSelectionRanges, setForcedSelectionRanges] =
-    useState<typeof selectionRanges>()
-  useEffect(() => {
-    if (!ast) return
-    if (selectionRanges.codeBasedSelections.length < 2) {
-      setEnable(false)
-      setForcedSelectionRanges({ ...selectionRanges })
-      return
+export function intersectInfo({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}) {
+  if (selectionRanges.codeBasedSelections.length < 2) {
+    return {
+      enabled: false,
+      transforms: [],
+      forcedSelectionRanges: { ...selectionRanges },
    }
+  }

-    const previousSegment =
-      selectionRanges.codeBasedSelections.length > 1 &&
-      isLinesParallelAndConstrained(
-        ast,
-        programMemory,
-        selectionRanges.codeBasedSelections[0],
-        selectionRanges.codeBasedSelections[1]
-      )
-    const shouldUsePreviousSegment =
-      selectionRanges.codeBasedSelections?.[1]?.type !== 'line-end' &&
-      previousSegment &&
-      previousSegment.isParallelAndConstrained
+  const previousSegment =
+    selectionRanges.codeBasedSelections.length > 1 &&
+    isLinesParallelAndConstrained(
+      kclManager.ast,
+      kclManager.programMemory,
+      selectionRanges.codeBasedSelections[0],
+      selectionRanges.codeBasedSelections[1]
+    )
+  const shouldUsePreviousSegment =
+    selectionRanges.codeBasedSelections?.[1]?.type !== 'line-end' &&
+    previousSegment &&
+    previousSegment.isParallelAndConstrained

-    const _forcedSelectionRanges: typeof selectionRanges = {
-      ...selectionRanges,
-      codeBasedSelections: [
-        selectionRanges.codeBasedSelections?.[0],
-        shouldUsePreviousSegment
-          ? {
-              range: previousSegment.sourceRange,
-              type: 'line-end',
-            }
-          : selectionRanges.codeBasedSelections?.[1],
-      ],
-    }
-    setForcedSelectionRanges(_forcedSelectionRanges)
-
-    const paths = _forcedSelectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) => getNodeFromPath<Value>(ast, pathToNode).node
-    )
-    const varDecs = paths.map(
-      (pathToNode) =>
-        getNodeFromPath<VariableDeclarator>(
-          ast,
-          pathToNode,
-          'VariableDeclarator'
-        )?.node
-    )
-    const primaryLine = varDecs[0]
-    const secondaryVarDecs = varDecs.slice(1)
-    const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
-      isSketchVariablesLinked(secondary, primaryLine, ast)
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        [
-          ...toolTips,
-          'startSketchAt', // TODO probably a better place for this to live
-        ].includes(node.callee.name as any)
-    )
-
-    const theTransforms = getTransformInfos(
-      {
-        ...selectionRanges,
-        codeBasedSelections:
-          _forcedSelectionRanges.codeBasedSelections.slice(1),
-      },
-      ast,
-      'intersect'
-    )
-    setTransformInfos(theTransforms)
-
-    const _enableEqual =
-      secondaryVarDecs.length === 1 &&
-      isAllTooltips &&
-      isOthersLinkedToPrimary &&
-      theTransforms.every(Boolean) &&
-      _forcedSelectionRanges?.codeBasedSelections?.[1]?.type === 'line-end'
-    setEnable(_enableEqual)
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  return (
-    <button
-      onClick={async () => {
-        if (!(transformInfos && ast && forecdSelectionRanges)) return
-        const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
-          transformSecondarySketchLinesTagFirst({
-            ast: JSON.parse(JSON.stringify(ast)),
-            selectionRanges: forecdSelectionRanges,
-            transformInfos,
-            programMemory,
-          })
-        const {
-          segName,
-          value,
-          valueNode,
-          variableName,
-          newVariableInsertIndex,
-          sign,
-        }: {
-          segName: string
-          value: number
-          valueNode: Value
-          variableName?: string
-          newVariableInsertIndex: number
-          sign: number
-        } = await getModalInfo({
-          segName: tagInfo?.tag,
-          isSegNameEditable: !tagInfo?.isTagExisting,
-          value: valueUsedInTransform,
-          initialVariableName: 'offset',
-        } as any)
-        if (segName === tagInfo?.tag && value === valueUsedInTransform) {
-          updateAst(modifiedAst, true, {
-            callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-          })
-        } else {
-          // transform again but forcing certain values
-          const finalValue = removeDoubleNegatives(
-            valueNode as BinaryPart,
-            sign,
-            variableName
-          )
-          const { modifiedAst: _modifiedAst, pathToNodeMap } =
-            transformSecondarySketchLinesTagFirst({
-              ast,
-              selectionRanges: forecdSelectionRanges,
-              transformInfos,
-              programMemory,
-              forceSegName: segName,
-              forceValueUsedInTransform: finalValue,
-            })
-          if (variableName) {
-            const newBody = [..._modifiedAst.body]
-            newBody.splice(
-              newVariableInsertIndex,
-              0,
-              createVariableDeclaration(variableName, valueNode)
-            )
-            _modifiedAst.body = newBody
+  const _forcedSelectionRanges: typeof selectionRanges = {
+    ...selectionRanges,
+    codeBasedSelections: [
+      selectionRanges.codeBasedSelections?.[0],
+      shouldUsePreviousSegment
+        ? {
+            range: previousSegment.sourceRange,
+            type: 'line-end',
          }
-          updateAst(_modifiedAst, true, {
-            callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-          })
-        }
-      }}
-      disabled={!enable}
-      title="Set Perpendicular Distance"
-    >
-      Set Perpendicular Distance
-    </button>
+        : selectionRanges.codeBasedSelections?.[1],
+    ],
+  }
+
+  const paths = _forcedSelectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+  const nodes = paths.map(
+    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
+  )
+  const varDecs = paths.map(
+    (pathToNode) =>
+      getNodeFromPath<VariableDeclarator>(
+        kclManager.ast,
+        pathToNode,
+        'VariableDeclarator'
+      )?.node
+  )
+  const primaryLine = varDecs[0]
+  const secondaryVarDecs = varDecs.slice(1)
+  const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
+    isSketchVariablesLinked(secondary, primaryLine, kclManager.ast)
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      [
+        ...toolTips,
+        'startSketchAt', // TODO probably a better place for this to live
+      ].includes(node.callee.name as any)
+  )
+
+  const theTransforms = getTransformInfos(
+    {
+      ...selectionRanges,
+      codeBasedSelections: _forcedSelectionRanges.codeBasedSelections.slice(1),
+    },
+    kclManager.ast,
+    'intersect'
+  )
+
+  const _enableEqual =
+    secondaryVarDecs.length === 1 &&
+    isAllTooltips &&
+    isOthersLinkedToPrimary &&
+    theTransforms.every(Boolean) &&
+    _forcedSelectionRanges?.codeBasedSelections?.[1]?.type === 'line-end'
+
+  return {
+    enabled: _enableEqual,
+    transforms: theTransforms,
+    forcedSelectionRanges: _forcedSelectionRanges,
+  }
+}
+
+export async function applyConstraintIntersect({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}): Promise<{
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+}> {
+  const { transforms, forcedSelectionRanges } = intersectInfo({
+    selectionRanges,
+  })
+  const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
+    transformSecondarySketchLinesTagFirst({
+      ast: JSON.parse(JSON.stringify(kclManager.ast)),
+      selectionRanges: forcedSelectionRanges,
+      transformInfos: transforms,
+      programMemory: kclManager.programMemory,
+    })
+  const {
+    segName,
+    value,
+    valueNode,
+    variableName,
+    newVariableInsertIndex,
+    sign,
+  } = await getModalInfo({
+    segName: tagInfo?.tag,
+    isSegNameEditable: !tagInfo?.isTagExisting,
+    value: valueUsedInTransform,
+    initialVariableName: 'offset',
+  })
+  if (segName === tagInfo?.tag && Number(value) === valueUsedInTransform) {
+    return {
+      modifiedAst,
+      pathToNodeMap,
+    }
+  }
+  // transform again but forcing certain values
+  const finalValue = removeDoubleNegatives(
+    valueNode as BinaryPart,
+    sign,
+    variableName
+  )
+  const { modifiedAst: _modifiedAst, pathToNodeMap: _pathToNodeMap } =
+    transformSecondarySketchLinesTagFirst({
+      ast: kclManager.ast,
+      selectionRanges: forcedSelectionRanges,
+      transformInfos: transforms,
+      programMemory: kclManager.programMemory,
+      forceSegName: segName,
+      forceValueUsedInTransform: finalValue,
+    })
+  if (variableName) {
+    const newBody = [..._modifiedAst.body]
+    newBody.splice(
+      newVariableInsertIndex,
+      0,
+      createVariableDeclaration(variableName, valueNode)
+    )
+    _modifiedAst.body = newBody
+  }
+  return {
+    modifiedAst: _modifiedAst,
+    pathToNodeMap: _pathToNodeMap,
+  }
 }
--- a/src/components/Toolbar/RemoveConstrainingValues.tsx
+++ b/src/components/Toolbar/RemoveConstrainingValues.tsx
@ -1,78 +1,63 @@
-import { useState, useEffect } from 'react'
-import { toolTips, useStore } from '../../useStore'
-import { Value } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { Selections } from 'lib/selections'
+import { Program, Value } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
 } from '../../lang/queryAst'
 import {
-  TransformInfo,
+  PathToNodeMap,
  getRemoveConstraintsTransforms,
  transformAstSketchLines,
 } from '../../lang/std/sketchcombos'
-import { updateCursors } from '../../lang/util'
+import { kclManager } from 'lang/KclSinglton'

-export const RemoveConstrainingValues = () => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const [enableHorz, setEnableHorz] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  useEffect(() => {
-    if (!ast) return
-    const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) => getNodeFromPath<Value>(ast, pathToNode).node
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        toolTips.includes(node.callee.name as any)
-    )
-
-    try {
-      const theTransforms = getRemoveConstraintsTransforms(
-        selectionRanges,
-        ast,
-        'removeConstrainingValues'
-      )
-      setTransformInfos(theTransforms)
-
-      const _enableHorz = isAllTooltips && theTransforms.every(Boolean)
-      setEnableHorz(_enableHorz)
-    } catch (e) {
-      console.error(e)
-    }
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  return (
-    <button
-      onClick={() => {
-        if (!transformInfos || !ast) return
-        const { modifiedAst, pathToNodeMap } = transformAstSketchLines({
-          ast,
-          selectionRanges,
-          transformInfos,
-          programMemory,
-          referenceSegName: '',
-        })
-        updateAst(modifiedAst, true, {
-          callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-        })
-      }}
-      disabled={!enableHorz}
-      title="Remove Constraining Values"
-    >
-      Remove Constraining Values
-    </button>
+export function removeConstrainingValuesInfo({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}) {
+  const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+  const nodes = paths.map(
+    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      toolTips.includes(node.callee.name as any)
+  )
+
+  try {
+    const transforms = getRemoveConstraintsTransforms(
+      selectionRanges,
+      kclManager.ast,
+      'removeConstrainingValues'
+    )
+
+    const enabled = isAllTooltips && transforms.every(Boolean)
+    return { enabled, transforms }
+  } catch (e) {
+    console.error(e)
+    return { enabled: false, transforms: [] }
+  }
+}
+
+export function applyRemoveConstrainingValues({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}): {
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+} {
+  const { transforms } = removeConstrainingValuesInfo({ selectionRanges })
+  return transformAstSketchLines({
+    ast: kclManager.ast,
+    selectionRanges,
+    transformInfos: transforms,
+    programMemory: kclManager.programMemory,
+    referenceSegName: '',
+  })
 }
--- a/src/components/Toolbar/SetAbsDistance.tsx
+++ b/src/components/Toolbar/SetAbsDistance.tsx
@ -1,145 +1,152 @@
-import { useState, useEffect } from 'react'
-import { create } from 'react-modal-promise'
-import { toolTips, useStore } from '../../useStore'
-import { Value } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { Selections } from 'lib/selections'
+import { BinaryPart, Program, Value } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
 } from '../../lang/queryAst'
 import {
-  TransformInfo,
  getTransformInfos,
  transformAstSketchLines,
-  ConstraintType,
+  PathToNodeMap,
 } from '../../lang/std/sketchcombos'
-import { SetAngleLengthModal } from '../SetAngleLengthModal'
+import {
+  SetAngleLengthModal,
+  createSetAngleLengthModal,
+} from '../SetAngleLengthModal'
 import {
  createIdentifier,
  createVariableDeclaration,
 } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
-import { updateCursors } from '../../lang/util'
+import { kclManager } from 'lang/KclSinglton'

-const getModalInfo = create(SetAngleLengthModal as any)
+const getModalInfo = createSetAngleLengthModal(SetAngleLengthModal)

-type ButtonType = 'xAbs' | 'yAbs' | 'snapToYAxis' | 'snapToXAxis'
+type Constraint = 'xAbs' | 'yAbs' | 'snapToYAxis' | 'snapToXAxis'

-const buttonLabels: Record<ButtonType, string> = {
-  xAbs: 'Set distance from X Axis',
-  yAbs: 'Set distance from Y Axis',
-  snapToYAxis: 'Snap To Y Axis',
-  snapToXAxis: 'Snap To X Axis',
-}
-
-export const SetAbsDistance = ({ buttonType }: { buttonType: ButtonType }) => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const disType: ConstraintType =
-    buttonType === 'xAbs' || buttonType === 'yAbs'
-      ? buttonType
-      : buttonType === 'snapToYAxis'
+export function absDistanceInfo({
+  selectionRanges,
+  constraint,
+}: {
+  selectionRanges: Selections
+  constraint: Constraint
+}) {
+  const disType =
+    constraint === 'xAbs' || constraint === 'yAbs'
+      ? constraint
+      : constraint === 'snapToYAxis'
      ? 'xAbs'
      : 'yAbs'
-  const [enableAngLen, setEnableAngLen] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  useEffect(() => {
-    if (!ast) return
-    const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) =>
-        getNodeFromPath<Value>(ast, pathToNode, 'CallExpression').node
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        toolTips.includes(node.callee.name as any)
-    )
-
-    const theTransforms = getTransformInfos(selectionRanges, ast, disType)
-    setTransformInfos(theTransforms)
-
-    const enableY =
-      disType === 'yAbs' &&
-      selectionRanges.otherSelections.length === 1 &&
-      selectionRanges.otherSelections[0] === 'x-axis' // select the x axis to set the distance from it i.e. y
-    const enableX =
-      disType === 'xAbs' &&
-      selectionRanges.otherSelections.length === 1 &&
-      selectionRanges.otherSelections[0] === 'y-axis' // select the y axis to set the distance from it i.e. x
-
-    const _enableHorz =
-      isAllTooltips &&
-      theTransforms.every(Boolean) &&
-      selectionRanges.codeBasedSelections.length === 1 &&
-      (enableX || enableY)
-    setEnableAngLen(_enableHorz)
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  const isAlign = buttonType === 'snapToYAxis' || buttonType === 'snapToXAxis'
-
-  return (
-    <button
-      onClick={async () => {
-        if (!(transformInfos && ast)) return
-        const { valueUsedInTransform } = transformAstSketchLines({
-          ast: JSON.parse(JSON.stringify(ast)),
-          selectionRanges: selectionRanges,
-          transformInfos,
-          programMemory,
-          referenceSegName: '',
-        })
-        try {
-          let forceVal = valueUsedInTransform || 0
-          const { valueNode, variableName, newVariableInsertIndex, sign } =
-            await (!isAlign &&
-              getModalInfo({
-                value: forceVal,
-                valueName: disType === 'yAbs' ? 'yDis' : 'xDis',
-              } as any))
-          let finalValue = isAlign
-            ? createIdentifier('_0')
-            : removeDoubleNegatives(valueNode, sign, variableName)
-
-          const { modifiedAst: _modifiedAst, pathToNodeMap } =
-            transformAstSketchLines({
-              ast: JSON.parse(JSON.stringify(ast)),
-              selectionRanges: selectionRanges,
-              transformInfos,
-              programMemory,
-              referenceSegName: '',
-              forceValueUsedInTransform: finalValue,
-            })
-          if (variableName) {
-            const newBody = [..._modifiedAst.body]
-            newBody.splice(
-              newVariableInsertIndex,
-              0,
-              createVariableDeclaration(variableName, valueNode)
-            )
-            _modifiedAst.body = newBody
-          }
-
-          updateAst(_modifiedAst, true, {
-            callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-          })
-        } catch (e) {
-          console.log('error', e)
-        }
-      }}
-      disabled={!enableAngLen}
-      title={buttonLabels[buttonType]}
-    >
-      {buttonLabels[buttonType]}
-    </button>
+  const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+  const nodes = paths.map(
+    (pathToNode) =>
+      getNodeFromPath<Value>(kclManager.ast, pathToNode, 'CallExpression').node
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      toolTips.includes(node.callee.name as any)
+  )
+
+  const transforms = getTransformInfos(selectionRanges, kclManager.ast, disType)
+
+  const enableY =
+    disType === 'yAbs' &&
+    selectionRanges.otherSelections.length === 1 &&
+    selectionRanges.otherSelections[0] === 'x-axis' // select the x axis to set the distance from it i.e. y
+  const enableX =
+    disType === 'xAbs' &&
+    selectionRanges.otherSelections.length === 1 &&
+    selectionRanges.otherSelections[0] === 'y-axis' // select the y axis to set the distance from it i.e. x
+
+  const enabled =
+    isAllTooltips &&
+    transforms.every(Boolean) &&
+    selectionRanges.codeBasedSelections.length === 1 &&
+    (enableX || enableY)
+
+  return { enabled, transforms }
+}
+
+export async function applyConstraintAbsDistance({
+  selectionRanges,
+  constraint,
+}: {
+  selectionRanges: Selections
+  constraint: 'xAbs' | 'yAbs'
+}): Promise<{
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+}> {
+  const transformInfos = absDistanceInfo({
+    selectionRanges,
+    constraint,
+  }).transforms
+  const { valueUsedInTransform } = transformAstSketchLines({
+    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    selectionRanges: selectionRanges,
+    transformInfos,
+    programMemory: kclManager.programMemory,
+    referenceSegName: '',
+  })
+  let forceVal = valueUsedInTransform || 0
+  const { valueNode, variableName, newVariableInsertIndex, sign } =
+    await getModalInfo({
+      value: forceVal,
+      valueName: constraint === 'yAbs' ? 'yDis' : 'xDis',
+    })
+  let finalValue = removeDoubleNegatives(
+    valueNode as BinaryPart,
+    sign,
+    variableName
+  )
+
+  const { modifiedAst: _modifiedAst, pathToNodeMap } = transformAstSketchLines({
+    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    selectionRanges: selectionRanges,
+    transformInfos,
+    programMemory: kclManager.programMemory,
+    referenceSegName: '',
+    forceValueUsedInTransform: finalValue,
+  })
+  if (variableName) {
+    const newBody = [..._modifiedAst.body]
+    newBody.splice(
+      newVariableInsertIndex,
+      0,
+      createVariableDeclaration(variableName, valueNode)
+    )
+    _modifiedAst.body = newBody
+  }
+  return { modifiedAst: _modifiedAst, pathToNodeMap }
+}
+
+export function applyConstraintAxisAlign({
+  selectionRanges,
+  constraint,
+}: {
+  selectionRanges: Selections
+  constraint: 'snapToYAxis' | 'snapToXAxis'
+}): {
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+} {
+  const transformInfos = absDistanceInfo({
+    selectionRanges,
+    constraint,
+  }).transforms
+
+  let finalValue = createIdentifier('_0')
+
+  return transformAstSketchLines({
+    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    selectionRanges: selectionRanges,
+    transformInfos,
+    programMemory: kclManager.programMemory,
+    referenceSegName: '',
+    forceValueUsedInTransform: finalValue,
+  })
 }
--- a/src/components/Toolbar/SetAngleBetween.tsx
+++ b/src/components/Toolbar/SetAngleBetween.tsx
@ -1,151 +1,135 @@
-import { useState, useEffect } from 'react'
-import { create } from 'react-modal-promise'
-import { toolTips, useStore } from '../../useStore'
-import { BinaryPart, Value, VariableDeclarator } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { Selections } from 'lib/selections'
+import { BinaryPart, Program, Value, VariableDeclarator } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
 } from '../../lang/queryAst'
 import { isSketchVariablesLinked } from '../../lang/std/sketchConstraints'
 import {
-  TransformInfo,
  transformSecondarySketchLinesTagFirst,
  getTransformInfos,
+  PathToNodeMap,
 } from '../../lang/std/sketchcombos'
-import { GetInfoModal } from '../SetHorVertDistanceModal'
+import { GetInfoModal, createInfoModal } from '../SetHorVertDistanceModal'
 import { createVariableDeclaration } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
-import { updateCursors } from '../../lang/util'
+import { kclManager } from 'lang/KclSinglton'

-const getModalInfo = create(GetInfoModal as any)
+const getModalInfo = createInfoModal(GetInfoModal)

-export const SetAngleBetween = () => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const [enable, setEnable] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  useEffect(() => {
-    if (!ast) return
-    const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) => getNodeFromPath<Value>(ast, pathToNode).node
-    )
-    const varDecs = paths.map(
-      (pathToNode) =>
-        getNodeFromPath<VariableDeclarator>(
-          ast,
-          pathToNode,
-          'VariableDeclarator'
-        )?.node
-    )
-    const primaryLine = varDecs[0]
-    const secondaryVarDecs = varDecs.slice(1)
-    const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
-      isSketchVariablesLinked(secondary, primaryLine, ast)
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        toolTips.includes(node.callee.name as any)
-    )
-
-    const theTransforms = getTransformInfos(
-      {
-        ...selectionRanges,
-        codeBasedSelections: selectionRanges.codeBasedSelections.slice(1),
-      },
-      ast,
-      'setAngleBetween'
-    )
-    setTransformInfos(theTransforms)
-
-    const _enableEqual =
-      secondaryVarDecs.length === 1 &&
-      isAllTooltips &&
-      isOthersLinkedToPrimary &&
-      theTransforms.every(Boolean)
-    setEnable(_enableEqual)
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  return (
-    <button
-      onClick={async () => {
-        if (!(transformInfos && ast)) return
-        const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
-          transformSecondarySketchLinesTagFirst({
-            ast: JSON.parse(JSON.stringify(ast)),
-            selectionRanges,
-            transformInfos,
-            programMemory,
-          })
-        const {
-          segName,
-          value,
-          valueNode,
-          variableName,
-          newVariableInsertIndex,
-          sign,
-        }: {
-          segName: string
-          value: number
-          valueNode: Value
-          variableName?: string
-          newVariableInsertIndex: number
-          sign: number
-        } = await getModalInfo({
-          segName: tagInfo?.tag,
-          isSegNameEditable: !tagInfo?.isTagExisting,
-          value: valueUsedInTransform,
-          initialVariableName: 'angle',
-        } as any)
-        if (segName === tagInfo?.tag && value === valueUsedInTransform) {
-          updateAst(modifiedAst, true, {
-            callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-          })
-        } else {
-          const finalValue = removeDoubleNegatives(
-            valueNode as BinaryPart,
-            sign,
-            variableName
-          )
-          // transform again but forcing certain values
-          const { modifiedAst: _modifiedAst, pathToNodeMap } =
-            transformSecondarySketchLinesTagFirst({
-              ast,
-              selectionRanges,
-              transformInfos,
-              programMemory,
-              forceSegName: segName,
-              forceValueUsedInTransform: finalValue,
-            })
-          if (variableName) {
-            const newBody = [..._modifiedAst.body]
-            newBody.splice(
-              newVariableInsertIndex,
-              0,
-              createVariableDeclaration(variableName, valueNode)
-            )
-            _modifiedAst.body = newBody
-          }
-          updateAst(_modifiedAst, true, {
-            callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-          })
-        }
-      }}
-      disabled={!enable}
-      title="Set Angle Between"
-    >
-      Set Angle Between
-    </button>
+export function angleBetweenInfo({
+  selectionRanges,
+}: {
+  selectionRanges: Selections
+}) {
+  const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+
+  const nodes = paths.map(
+    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
+  )
+  const varDecs = paths.map(
+    (pathToNode) =>
+      getNodeFromPath<VariableDeclarator>(
+        kclManager.ast,
+        pathToNode,
+        'VariableDeclarator'
+      )?.node
+  )
+  const primaryLine = varDecs[0]
+  const secondaryVarDecs = varDecs.slice(1)
+  const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
+    isSketchVariablesLinked(secondary, primaryLine, kclManager.ast)
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      toolTips.includes(node.callee.name as any)
+  )
+
+  const theTransforms = getTransformInfos(
+    {
+      ...selectionRanges,
+      codeBasedSelections: selectionRanges.codeBasedSelections.slice(1),
+    },
+    kclManager.ast,
+    'setAngleBetween'
+  )
+
+  const _enableEqual =
+    secondaryVarDecs.length === 1 &&
+    isAllTooltips &&
+    isOthersLinkedToPrimary &&
+    theTransforms.every(Boolean)
+  return { enabled: _enableEqual, transforms: theTransforms }
+}
+
+export async function applyConstraintAngleBetween({
+  selectionRanges,
+}: // constraint,
+{
+  selectionRanges: Selections
+  // constraint: 'setHorzDistance' | 'setVertDistance'
+}): Promise<{
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+}> {
+  const transformInfos = angleBetweenInfo({ selectionRanges }).transforms
+  const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
+    transformSecondarySketchLinesTagFirst({
+      ast: JSON.parse(JSON.stringify(kclManager.ast)),
+      selectionRanges,
+      transformInfos,
+      programMemory: kclManager.programMemory,
+    })
+  const {
+    segName,
+    value,
+    valueNode,
+    variableName,
+    newVariableInsertIndex,
+    sign,
+  } = await getModalInfo({
+    segName: tagInfo?.tag,
+    isSegNameEditable: !tagInfo?.isTagExisting,
+    value: valueUsedInTransform,
+    initialVariableName: 'angle',
+  } as any)
+  if (segName === tagInfo?.tag && Number(value) === valueUsedInTransform) {
+    return {
+      modifiedAst,
+      pathToNodeMap,
+    }
+  }
+
+  const finalValue = removeDoubleNegatives(
+    valueNode as BinaryPart,
+    sign,
+    variableName
+  )
+  // transform again but forcing certain values
+  const { modifiedAst: _modifiedAst, pathToNodeMap: _pathToNodeMap } =
+    transformSecondarySketchLinesTagFirst({
+      ast: kclManager.ast,
+      selectionRanges,
+      transformInfos,
+      programMemory: kclManager.programMemory,
+      forceSegName: segName,
+      forceValueUsedInTransform: finalValue,
+    })
+  if (variableName) {
+    const newBody = [..._modifiedAst.body]
+    newBody.splice(
+      newVariableInsertIndex,
+      0,
+      createVariableDeclaration(variableName, valueNode)
+    )
+    _modifiedAst.body = newBody
+  }
+  return {
+    modifiedAst: _modifiedAst,
+    pathToNodeMap: _pathToNodeMap,
+  }
 }
--- a/src/components/Toolbar/SetHorzVertDistance.tsx
+++ b/src/components/Toolbar/SetHorzVertDistance.tsx
@ -1,182 +1,170 @@
-import { useState, useEffect } from 'react'
-import { create } from 'react-modal-promise'
-import { toolTips, useStore } from '../../useStore'
-import { BinaryPart, Value, VariableDeclarator } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { BinaryPart, Program, Value, VariableDeclarator } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
 } from '../../lang/queryAst'
 import { isSketchVariablesLinked } from '../../lang/std/sketchConstraints'
 import {
-  TransformInfo,
  transformSecondarySketchLinesTagFirst,
  getTransformInfos,
-  ConstraintType,
+  PathToNodeMap,
 } from '../../lang/std/sketchcombos'
-import { GetInfoModal } from '../SetHorVertDistanceModal'
+import { GetInfoModal, createInfoModal } from '../SetHorVertDistanceModal'
 import { createLiteral, createVariableDeclaration } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
-import { updateCursors } from '../../lang/util'
+import { kclManager } from 'lang/KclSinglton'
+import { Selections } from 'lib/selections'

-const getModalInfo = create(GetInfoModal as any)
+const getModalInfo = createInfoModal(GetInfoModal)

-type ButtonType =
-  | 'setHorzDistance'
-  | 'setVertDistance'
-  | 'alignEndsHorizontally'
-  | 'alignEndsVertically'
-
-const buttonLabels: Record<ButtonType, string> = {
-  setHorzDistance: 'Set Horizontal Distance',
-  setVertDistance: 'Set Vertical Distance',
-  alignEndsHorizontally: 'Align Ends Horizontally',
-  alignEndsVertically: 'Align Ends Vertically',
-}
-
-export const SetHorzVertDistance = ({
-  buttonType,
+export function horzVertDistanceInfo({
+  selectionRanges,
+  constraint,
 }: {
-  buttonType: ButtonType
-}) => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const constraint: ConstraintType =
-    buttonType === 'setHorzDistance' || buttonType === 'setVertDistance'
-      ? buttonType
-      : buttonType === 'alignEndsHorizontally'
-      ? 'setVertDistance'
-      : 'setHorzDistance'
-  const [enable, setEnable] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  useEffect(() => {
-    if (!ast) return
-    const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) => getNodeFromPath<Value>(ast, pathToNode).node
-    )
-    const varDecs = paths.map(
-      (pathToNode) =>
-        getNodeFromPath<VariableDeclarator>(
-          ast,
-          pathToNode,
-          'VariableDeclarator'
-        )?.node
-    )
-    const primaryLine = varDecs[0]
-    const secondaryVarDecs = varDecs.slice(1)
-    const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
-      isSketchVariablesLinked(secondary, primaryLine, ast)
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        [
-          ...toolTips,
-          'startSketchAt', // TODO probably a better place for this to live
-        ].includes(node.callee.name as any)
-    )
-
-    const theTransforms = getTransformInfos(
-      {
-        ...selectionRanges,
-        codeBasedSelections: selectionRanges.codeBasedSelections.slice(1),
-      },
-      ast,
-      constraint
-    )
-    setTransformInfos(theTransforms)
-
-    const _enableEqual =
-      secondaryVarDecs.length === 1 &&
-      isAllTooltips &&
-      isOthersLinkedToPrimary &&
-      theTransforms.every(Boolean)
-    setEnable(_enableEqual)
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  const isAlign =
-    buttonType === 'alignEndsHorizontally' ||
-    buttonType === 'alignEndsVertically'
-
-  return (
-    <button
-      onClick={async () => {
-        if (!(transformInfos && ast)) return
-        const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
-          transformSecondarySketchLinesTagFirst({
-            ast: JSON.parse(JSON.stringify(ast)),
-            selectionRanges,
-            transformInfos,
-            programMemory,
-          })
-        const {
-          segName,
-          value,
-          valueNode,
-          variableName,
-          newVariableInsertIndex,
-          sign,
-        }: {
-          segName: string
-          value: number
-          valueNode: Value
-          variableName?: string
-          newVariableInsertIndex: number
-          sign: number
-        } = await (!isAlign &&
-          getModalInfo({
-            segName: tagInfo?.tag,
-            isSegNameEditable: !tagInfo?.isTagExisting,
-            value: valueUsedInTransform,
-            initialVariableName:
-              constraint === 'setHorzDistance' ? 'xDis' : 'yDis',
-          } as any))
-        if (segName === tagInfo?.tag && value === valueUsedInTransform) {
-          updateAst(modifiedAst, true, {
-            callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-          })
-        } else {
-          let finalValue = isAlign
-            ? createLiteral(0)
-            : removeDoubleNegatives(valueNode as BinaryPart, sign, variableName)
-          // transform again but forcing certain values
-          const { modifiedAst: _modifiedAst, pathToNodeMap } =
-            transformSecondarySketchLinesTagFirst({
-              ast,
-              selectionRanges,
-              transformInfos,
-              programMemory,
-              forceSegName: segName,
-              forceValueUsedInTransform: finalValue,
-            })
-          if (variableName) {
-            const newBody = [..._modifiedAst.body]
-            newBody.splice(
-              newVariableInsertIndex,
-              0,
-              createVariableDeclaration(variableName, valueNode)
-            )
-            _modifiedAst.body = newBody
-          }
-          updateAst(_modifiedAst, true, {
-            callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-          })
-        }
-      }}
-      disabled={!enable}
-      title={buttonLabels[buttonType]}
-    >
-      {buttonLabels[buttonType]}
-    </button>
+  selectionRanges: Selections
+  constraint: 'setHorzDistance' | 'setVertDistance'
+}) {
+  const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+  const nodes = paths.map(
+    (pathToNode) => getNodeFromPath<Value>(kclManager.ast, pathToNode).node
+  )
+  const varDecs = paths.map(
+    (pathToNode) =>
+      getNodeFromPath<VariableDeclarator>(
+        kclManager.ast,
+        pathToNode,
+        'VariableDeclarator'
+      )?.node
+  )
+  const primaryLine = varDecs[0]
+  const secondaryVarDecs = varDecs.slice(1)
+  const isOthersLinkedToPrimary = secondaryVarDecs.every((secondary) =>
+    isSketchVariablesLinked(secondary, primaryLine, kclManager.ast)
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      [
+        ...toolTips,
+        'startSketchAt', // TODO probably a better place for this to live
+      ].includes(node.callee.name as any)
+  )
+
+  const theTransforms = getTransformInfos(
+    {
+      ...selectionRanges,
+      codeBasedSelections: selectionRanges.codeBasedSelections.slice(1),
+    },
+    kclManager.ast,
+    constraint
+  )
+  const _enableEqual =
+    secondaryVarDecs.length === 1 &&
+    isAllTooltips &&
+    isOthersLinkedToPrimary &&
+    theTransforms.every(Boolean)
+  return { enabled: _enableEqual, transforms: theTransforms }
+}
+
+export async function applyConstraintHorzVertDistance({
+  selectionRanges,
+  constraint,
+  // TODO align will always be false (covered by synconous applyConstraintHorzVertAlign), remove it
+  isAlign = false,
+}: {
+  selectionRanges: Selections
+  constraint: 'setHorzDistance' | 'setVertDistance'
+  isAlign?: false
+}): Promise<{
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+}> {
+  const transformInfos = horzVertDistanceInfo({
+    selectionRanges,
+    constraint,
+  }).transforms
+  const { modifiedAst, tagInfo, valueUsedInTransform, pathToNodeMap } =
+    transformSecondarySketchLinesTagFirst({
+      ast: JSON.parse(JSON.stringify(kclManager.ast)),
+      selectionRanges,
+      transformInfos,
+      programMemory: kclManager.programMemory,
+    })
+  const {
+    segName,
+    value,
+    valueNode,
+    variableName,
+    newVariableInsertIndex,
+    sign,
+  } = await getModalInfo({
+    segName: tagInfo?.tag,
+    isSegNameEditable: !tagInfo?.isTagExisting,
+    value: valueUsedInTransform,
+    initialVariableName: constraint === 'setHorzDistance' ? 'xDis' : 'yDis',
+  } as any)
+  if (segName === tagInfo?.tag && Number(value) === valueUsedInTransform) {
+    return {
+      modifiedAst,
+      pathToNodeMap,
+    }
+  } else {
+    let finalValue = isAlign
+      ? createLiteral(0)
+      : removeDoubleNegatives(valueNode as BinaryPart, sign, variableName)
+    // transform again but forcing certain values
+    const { modifiedAst: _modifiedAst, pathToNodeMap } =
+      transformSecondarySketchLinesTagFirst({
+        ast: kclManager.ast,
+        selectionRanges,
+        transformInfos,
+        programMemory: kclManager.programMemory,
+        forceSegName: segName,
+        forceValueUsedInTransform: finalValue,
+      })
+    if (variableName) {
+      const newBody = [..._modifiedAst.body]
+      newBody.splice(
+        newVariableInsertIndex,
+        0,
+        createVariableDeclaration(variableName, valueNode)
+      )
+      _modifiedAst.body = newBody
+    }
+    return {
+      modifiedAst: _modifiedAst,
+      pathToNodeMap,
+    }
+  }
+}
+
+export function applyConstraintHorzVertAlign({
+  selectionRanges,
+  constraint,
+}: {
+  selectionRanges: Selections
+  constraint: 'setHorzDistance' | 'setVertDistance'
+}): {
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+} {
+  const transformInfos = horzVertDistanceInfo({
+    selectionRanges,
+    constraint,
+  }).transforms
+  let finalValue = createLiteral(0)
+  const { modifiedAst, pathToNodeMap } = transformSecondarySketchLinesTagFirst({
+    ast: kclManager.ast,
+    selectionRanges,
+    transformInfos,
+    programMemory: kclManager.programMemory,
+    forceValueUsedInTransform: finalValue,
+  })
+  return {
+    modifiedAst: modifiedAst,
+    pathToNodeMap,
+  }
 }
--- a/src/components/Toolbar/setAngleLength.tsx
+++ b/src/components/Toolbar/setAngleLength.tsx
@ -1,17 +1,19 @@
-import { useState, useEffect } from 'react'
-import { create } from 'react-modal-promise'
-import { toolTips, useStore } from '../../useStore'
-import { Value } from '../../lang/wasm'
+import { toolTips } from '../../useStore'
+import { Selections } from 'lib/selections'
+import { BinaryPart, Program, Value } from '../../lang/wasm'
 import {
  getNodePathFromSourceRange,
  getNodeFromPath,
 } from '../../lang/queryAst'
 import {
-  TransformInfo,
+  PathToNodeMap,
  getTransformInfos,
  transformAstSketchLines,
 } from '../../lang/std/sketchcombos'
-import { SetAngleLengthModal } from '../SetAngleLengthModal'
+import {
+  SetAngleLengthModal,
+  createSetAngleLengthModal,
+} from '../SetAngleLengthModal'
 import {
  createBinaryExpressionWithUnary,
  createIdentifier,
@ -19,141 +21,123 @@ import {
 } from '../../lang/modifyAst'
 import { removeDoubleNegatives } from '../AvailableVarsHelpers'
 import { normaliseAngle } from '../../lib/utils'
-import { updateCursors } from '../../lang/util'
+import { kclManager } from 'lang/KclSinglton'

-const getModalInfo = create(SetAngleLengthModal as any)
+const getModalInfo = createSetAngleLengthModal(SetAngleLengthModal)

-type ButtonType = 'setAngle' | 'setLength'
-
-const buttonLabels: Record<ButtonType, string> = {
-  setAngle: 'Set Angle',
-  setLength: 'Set Length',
-}
-
-export const SetAngleLength = ({
-  angleOrLength,
+export function setAngleLengthInfo({
+  selectionRanges,
+  angleOrLength = 'setLength',
 }: {
-  angleOrLength: ButtonType
-}) => {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst, setCursor } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-      setCursor: s.setCursor,
-    }))
-  const [enableAngLen, setEnableAngLen] = useState(false)
-  const [transformInfos, setTransformInfos] = useState<TransformInfo[]>()
-  useEffect(() => {
-    if (!ast) return
-    const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
-      getNodePathFromSourceRange(ast, range)
-    )
-    const nodes = paths.map(
-      (pathToNode) =>
-        getNodeFromPath<Value>(ast, pathToNode, 'CallExpression').node
-    )
-    const isAllTooltips = nodes.every(
-      (node) =>
-        node?.type === 'CallExpression' &&
-        toolTips.includes(node.callee.name as any)
-    )
-
-    const theTransforms = getTransformInfos(selectionRanges, ast, angleOrLength)
-    setTransformInfos(theTransforms)
-
-    const _enableHorz = isAllTooltips && theTransforms.every(Boolean)
-    setEnableAngLen(_enableHorz)
-  }, [guiMode, selectionRanges])
-  if (guiMode.mode !== 'sketch') return null
-
-  return (
-    <button
-      onClick={async () => {
-        if (!(transformInfos && ast)) return
-        const { valueUsedInTransform } = transformAstSketchLines({
-          ast: JSON.parse(JSON.stringify(ast)),
-          selectionRanges,
-          transformInfos,
-          programMemory,
-          referenceSegName: '',
-        })
-        try {
-          const isReferencingYAxis =
-            selectionRanges.otherSelections.length === 1 &&
-            selectionRanges.otherSelections[0] === 'y-axis'
-          const isReferencingYAxisAngle =
-            isReferencingYAxis && angleOrLength === 'setAngle'
-
-          const isReferencingXAxis =
-            selectionRanges.otherSelections.length === 1 &&
-            selectionRanges.otherSelections[0] === 'x-axis'
-          const isReferencingXAxisAngle =
-            isReferencingXAxis && angleOrLength === 'setAngle'
-
-          let forceVal = valueUsedInTransform || 0
-          let calcIdentifier = createIdentifier('_0')
-          if (isReferencingYAxisAngle) {
-            calcIdentifier = createIdentifier(forceVal < 0 ? '_270' : '_90')
-            forceVal = normaliseAngle(forceVal + (forceVal < 0 ? 90 : -90))
-          } else if (isReferencingXAxisAngle) {
-            calcIdentifier = createIdentifier(
-              Math.abs(forceVal) > 90 ? '_180' : '_0'
-            )
-            forceVal =
-              Math.abs(forceVal) > 90
-                ? normaliseAngle(forceVal - 180)
-                : forceVal
-          }
-          const { valueNode, variableName, newVariableInsertIndex, sign } =
-            await getModalInfo({
-              value: forceVal,
-              valueName: angleOrLength === 'setAngle' ? 'angle' : 'length',
-              shouldCreateVariable: true,
-            } as any)
-          let finalValue = removeDoubleNegatives(valueNode, sign, variableName)
-          if (
-            isReferencingYAxisAngle ||
-            (isReferencingXAxisAngle && calcIdentifier.name !== '_0')
-          ) {
-            finalValue = createBinaryExpressionWithUnary([
-              calcIdentifier,
-              finalValue,
-            ])
-          }
-
-          const { modifiedAst: _modifiedAst, pathToNodeMap } =
-            transformAstSketchLines({
-              ast: JSON.parse(JSON.stringify(ast)),
-              selectionRanges,
-              transformInfos,
-              programMemory,
-              referenceSegName: '',
-              forceValueUsedInTransform: finalValue,
-            })
-          if (variableName) {
-            const newBody = [..._modifiedAst.body]
-            newBody.splice(
-              newVariableInsertIndex,
-              0,
-              createVariableDeclaration(variableName, valueNode)
-            )
-            _modifiedAst.body = newBody
-          }
-
-          updateAst(_modifiedAst, true, {
-            callBack: updateCursors(setCursor, selectionRanges, pathToNodeMap),
-          })
-        } catch (e) {
-          console.log('erorr', e)
-        }
-      }}
-      disabled={!enableAngLen}
-      title={buttonLabels[angleOrLength]}
-    >
-      {buttonLabels[angleOrLength]}
-    </button>
+  selectionRanges: Selections
+  angleOrLength?: 'setLength' | 'setAngle'
+}) {
+  const paths = selectionRanges.codeBasedSelections.map(({ range }) =>
+    getNodePathFromSourceRange(kclManager.ast, range)
  )
+  const nodes = paths.map(
+    (pathToNode) =>
+      getNodeFromPath<Value>(kclManager.ast, pathToNode, 'CallExpression').node
+  )
+  const isAllTooltips = nodes.every(
+    (node) =>
+      node?.type === 'CallExpression' &&
+      toolTips.includes(node.callee.name as any)
+  )
+
+  const transforms = getTransformInfos(
+    selectionRanges,
+    kclManager.ast,
+    angleOrLength
+  )
+  const enabled = isAllTooltips && transforms.every(Boolean)
+  return { enabled, transforms }
+}
+
+export async function applyConstraintAngleLength({
+  selectionRanges,
+  angleOrLength = 'setLength',
+}: {
+  selectionRanges: Selections
+  angleOrLength?: 'setLength' | 'setAngle'
+}): Promise<{
+  modifiedAst: Program
+  pathToNodeMap: PathToNodeMap
+}> {
+  const { transforms } = setAngleLengthInfo({ selectionRanges, angleOrLength })
+  const { valueUsedInTransform } = transformAstSketchLines({
+    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    selectionRanges,
+    transformInfos: transforms,
+    programMemory: kclManager.programMemory,
+    referenceSegName: '',
+  })
+  try {
+    const isReferencingYAxis =
+      selectionRanges.otherSelections.length === 1 &&
+      selectionRanges.otherSelections[0] === 'y-axis'
+    const isReferencingYAxisAngle =
+      isReferencingYAxis && angleOrLength === 'setAngle'
+
+    const isReferencingXAxis =
+      selectionRanges.otherSelections.length === 1 &&
+      selectionRanges.otherSelections[0] === 'x-axis'
+    const isReferencingXAxisAngle =
+      isReferencingXAxis && angleOrLength === 'setAngle'
+
+    let forceVal = valueUsedInTransform || 0
+    let calcIdentifier = createIdentifier('_0')
+    if (isReferencingYAxisAngle) {
+      calcIdentifier = createIdentifier(forceVal < 0 ? '_270' : '_90')
+      forceVal = normaliseAngle(forceVal + (forceVal < 0 ? 90 : -90))
+    } else if (isReferencingXAxisAngle) {
+      calcIdentifier = createIdentifier(Math.abs(forceVal) > 90 ? '_180' : '_0')
+      forceVal =
+        Math.abs(forceVal) > 90 ? normaliseAngle(forceVal - 180) : forceVal
+    }
+    const { valueNode, variableName, newVariableInsertIndex, sign } =
+      await getModalInfo({
+        value: forceVal,
+        valueName: angleOrLength === 'setAngle' ? 'angle' : 'length',
+        shouldCreateVariable: true,
+      })
+
+    let finalValue = removeDoubleNegatives(
+      valueNode as BinaryPart,
+      sign,
+      variableName
+    )
+    if (
+      isReferencingYAxisAngle ||
+      (isReferencingXAxisAngle && calcIdentifier.name !== '_0')
+    ) {
+      finalValue = createBinaryExpressionWithUnary([calcIdentifier, finalValue])
+    }
+
+    const { modifiedAst: _modifiedAst, pathToNodeMap } =
+      transformAstSketchLines({
+        ast: JSON.parse(JSON.stringify(kclManager.ast)),
+        selectionRanges,
+        transformInfos: transforms,
+        programMemory: kclManager.programMemory,
+        referenceSegName: '',
+        forceValueUsedInTransform: finalValue,
+      })
+    if (variableName) {
+      const newBody = [..._modifiedAst.body]
+      newBody.splice(
+        newVariableInsertIndex,
+        0,
+        createVariableDeclaration(variableName, valueNode)
+      )
+      _modifiedAst.body = newBody
+    }
+    return {
+      modifiedAst: _modifiedAst,
+      pathToNodeMap,
+    }
+  } catch (e) {
+    console.log('erorr', e)
+    throw e
+  }
 }
--- a/src/components/Tooltip.module.css
+++ b/src/components/Tooltip.module.css
@ -0,0 +1,229 @@
+/* Adapted from https://github.com/argyleink/gui-challenges/blob/main/tooltips/tool-tip.css */
+
+.tooltip {
+  /* internal CSS vars */
+  --_delay: 200ms;
+  --_p-inline: 1ch;
+  --_p-block: 4px;
+  --_triangle-size: 7px;
+  /* --_bg: hsl(0 0% 20%); */
+  --_bg: var(--chalkboard-10);
+  --_shadow-alpha: 20%;
+
+  /* Used to power spacing and layout for RTL languages */
+  --isRTL: -1;
+
+  /* Using conic gradients to get a clear tip triangle */
+  --_bottom-tip: conic-gradient(
+      from -30deg at bottom,
+      #0000,
+      #000 1deg 60deg,
+      #0000 61deg
+    )
+    bottom / 100% 50% no-repeat;
+  --_top-tip: conic-gradient(
+      from 150deg at top,
+      #0000,
+      #000 1deg 60deg,
+      #0000 61deg
+    )
+    top / 100% 50% no-repeat;
+  --_right-tip: conic-gradient(
+      from -120deg at right,
+      #0000,
+      #000 1deg 60deg,
+      #0000 61deg
+    )
+    right / 50% 100% no-repeat;
+  --_left-tip: conic-gradient(
+      from 60deg at left,
+      #0000,
+      #000 1deg 60deg,
+      #0000 61deg
+    )
+    left / 50% 100% no-repeat;
+
+  pointer-events: none;
+  user-select: none;
+
+  /* The parts that will be transitioned */
+  opacity: 0;
+  transform: translate(var(--_x, 0), var(--_y, 0));
+  transition: transform 0.15s ease-out, opacity 0.11s ease-out;
+
+  position: absolute;
+  z-index: 1;
+  inline-size: max-content;
+  max-inline-size: 25ch;
+  text-align: start;
+  font-family: var(--mono-font-family);
+  text-transform: none;
+  font-size: 0.9rem;
+  font-weight: normal;
+  line-height: initial;
+  letter-spacing: 0;
+  padding: var(--_p-block) var(--_p-inline);
+  margin: 0;
+  border-radius: 3px;
+  background: var(--_bg);
+  @apply text-chalkboard-110;
+  will-change: filter;
+  filter: drop-shadow(0 1px 3px hsl(0 0% 0% / var(--_shadow-alpha)))
+    drop-shadow(0 6px 12px hsl(0 0% 0% / var(--_shadow-alpha)));
+}
+
+:global(.dark) .tooltip {
+  --_bg: var(--chalkboard-110);
+  @apply text-chalkboard-10;
+}
+
+/* TODO we don't support a light theme yet */
+/* @media (prefers-color-scheme: light) {
+  .tooltip {
+      --_bg: white;
+      --_shadow-alpha: 15%;
+  }
+} */
+
+.tooltip:dir(rtl) {
+  --isRTL: 1;
+}
+
+/* :has and :is are pretty fresh CSS pseudo-selectors, may not see full support */
+:has(> .tooltip) {
+  position: relative;
+}
+
+:is(:hover, :focus-visible, :active) > .tooltip {
+  opacity: 1;
+  transition-delay: var(--_delay);
+}
+
+:is(:focus, :focus-visible, :focus-within) > .tooltip {
+  --_delay: 0 !important;
+}
+
+/* prepend some prose for screen readers only */
+.tooltip::before {
+  content: '; Has tooltip: ';
+  clip: rect(1px, 1px, 1px, 1px);
+  clip-path: inset(50%);
+  height: 1px;
+  width: 1px;
+  margin: -1px;
+  overflow: hidden;
+  padding: 0;
+  position: absolute;
+}
+
+/* tooltip shape is a pseudo element so we can cast a shadow */
+.tooltip::after {
+  content: '';
+  background: var(--_bg);
+  position: absolute;
+  z-index: -1;
+  inset: 0;
+  mask: var(--_tip);
+}
+
+.tooltip.top,
+.tooltip.blockStart,
+.tooltip.bottom,
+.tooltip.blockEnd {
+  text-align: center;
+}
+
+/* TOP || BLOCK-START */
+.tooltip.top,
+.tooltip.blockStart {
+  inset-inline-start: 50%;
+  inset-block-end: calc(100% + var(--_p-block) + var(--_triangle-size));
+  --_x: calc(50% * var(--isRTL));
+}
+
+.tooltip.top::after,
+.tooltip.tooltip.blockStart::after {
+  --_tip: var(--_bottom-tip);
+  inset-block-end: calc(var(--_triangle-size) * -1);
+  border-block-end: var(--_triangle-size) solid transparent;
+}
+
+/* RIGHT || INLINE-END */
+.tooltip.right,
+.tooltip.inlineEnd {
+  inset-inline-start: calc(100% + var(--_p-inline) + var(--_triangle-size));
+  inset-block-end: 50%;
+  --_y: 50%;
+}
+
+.tooltip.right::after,
+.tooltip.tooltip.inlineEnd::after {
+  --_tip: var(--_left-tip);
+  inset-inline-start: calc(var(--_triangle-size) * -1);
+  border-inline-start: var(--_triangle-size) solid transparent;
+}
+
+.tooltip.right:dir(rtl)::after,
+.tooltip.inlineEnd:dir(rtl)::after {
+  --_tip: var(--_right-tip);
+}
+
+/* BOTTOM || BLOCK-END */
+.tooltip.bottom,
+.tooltip.blockEnd {
+  inset-inline-start: 50%;
+  inset-block-start: calc(100% + var(--_p-block) + var(--_triangle-size));
+  --_x: calc(50% * var(--isRTL));
+}
+
+.tooltip.bottom::after,
+.tooltip.tooltip.blockEnd::after {
+  --_tip: var(--_top-tip);
+  inset-block-start: calc(var(--_triangle-size) * -1);
+  border-block-start: var(--_triangle-size) solid transparent;
+}
+
+/* LEFT || INLINE-START */
+.tooltip.left,
+.tooltip.inlineStart {
+  inset-inline-end: calc(100% + var(--_p-inline) + var(--_triangle-size));
+  inset-block-end: 50%;
+  --_y: 50%;
+}
+
+.tooltip.left::after,
+.tooltip.tooltip.inlineStart::after {
+  --_tip: var(--_right-tip);
+  inset-inline-end: calc(var(--_triangle-size) * -1);
+  border-inline-end: var(--_triangle-size) solid transparent;
+}
+
+.tooltip.left:dir(rtl)::after,
+.tooltip.inlineStart:dir(rtl)::after {
+  --_tip: var(--_left-tip);
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  /* TOP || BLOCK-START */
+  :has(> :is(.tooltip.top, .tooltip.blockStart)):not(:hover, :active) .tooltip {
+    --_y: 3px;
+  }
+
+  /* RIGHT || INLINE-END */
+  :has(> :is(.tooltip.right, .tooltip.inlineEnd)):not(:hover, :active)
+    .tooltip {
+    --_x: calc(var(--isRTL) * -3px * -1);
+  }
+
+  /* BOTTOM || BLOCK-END */
+  :has(> :is(.tooltip.bottom, .tooltip.blockEnd)):not(:hover, :active)
+    .tooltip {
+    --_y: -3px;
+  }
+
+  /* BOTTOM || BLOCK-END */
+  :has(> :is(.tooltip.left, .tooltip.inlineStart)):not(:hover, :active)
+    .tooltip {
+    --_x: calc(var(--isRTL) * 3px * -1);
+  }
+}
--- a/src/components/Tooltip.tsx
+++ b/src/components/Tooltip.tsx
@ -0,0 +1,37 @@
+// We do use all the classes in this file currently, but we
+// index into them with styles[position], which CSS Modules doesn't pick up.
+// eslint-disable-next-line css-modules/no-unused-class
+import styles from './Tooltip.module.css'
+
+interface TooltipProps extends React.PropsWithChildren {
+  position?:
+    | 'top'
+    | 'bottom'
+    | 'left'
+    | 'right'
+    | 'blockStart'
+    | 'blockEnd'
+    | 'inlineStart'
+    | 'inlineEnd'
+  className?: string
+  delay?: number
+}
+
+export default function Tooltip({
+  children,
+  position = 'top',
+  className,
+  delay = 200,
+}: TooltipProps) {
+  return (
+    <div
+      // @ts-ignore while awaiting merge of this PR for support of "inert" https://github.com/DefinitelyTyped/DefinitelyTyped/pull/60822
+      inert="true"
+      role="tooltip"
+      className={styles.tooltip + ' ' + styles[position] + ' ' + className}
+      style={{ '--_delay': delay + 'ms' } as React.CSSProperties}
+    >
+      {children}
+    </div>
+  )
+}
--- a/src/components/UserSidebarMenu.test.tsx
+++ b/src/components/UserSidebarMenu.test.tsx
@ -1,6 +1,11 @@
 import { fireEvent, render, screen } from '@testing-library/react'
 import UserSidebarMenu from './UserSidebarMenu'
-import { BrowserRouter } from 'react-router-dom'
+import {
+  Route,
+  RouterProvider,
+  createMemoryRouter,
+  createRoutesFromElements,
+} from 'react-router-dom'
 import { Models } from '@kittycad/lib'
 import { GlobalStateProvider } from './GlobalStateProvider'
 import CommandBarProvider from './CommandBar'
@ -93,11 +98,24 @@ describe('UserSidebarMenu tests', () => {

 function TestWrap({ children }: { children: React.ReactNode }) {
  // wrap in router and xState context
-  return (
-    <BrowserRouter>
-      <CommandBarProvider>
-        <GlobalStateProvider>{children}</GlobalStateProvider>
-      </CommandBarProvider>
-    </BrowserRouter>
+  // We have to use a memory router in the testing environment,
+  // and we have to use the createMemoryRouter function instead of <MemoryRouter /> as of react-router v6.4:
+  // https://reactrouter.com/en/6.16.0/routers/picking-a-router#using-v64-data-apis
+  const router = createMemoryRouter(
+    createRoutesFromElements(
+      <Route
+        path="/file/:id"
+        element={
+          <CommandBarProvider>
+            <GlobalStateProvider>{children}</GlobalStateProvider>
+          </CommandBarProvider>
+        }
+      />
+    ),
+    {
+      initialEntries: ['/file/new'],
+      initialIndex: 0,
+    }
  )
+  return <RouterProvider router={router} />
 }
--- a/src/components/UserSidebarMenu.tsx
+++ b/src/components/UserSidebarMenu.tsx
@ -1,24 +1,28 @@
 import { Popover, Transition } from '@headlessui/react'
 import { ActionButton } from './ActionButton'
-import { faBars, faGear, faSignOutAlt } from '@fortawesome/free-solid-svg-icons'
+import {
+  faBars,
+  faBug,
+  faGear,
+  faSignOutAlt,
+} from '@fortawesome/free-solid-svg-icons'
 import { faGithub } from '@fortawesome/free-brands-svg-icons'
 import { useLocation, useNavigate } from 'react-router-dom'
 import { Fragment, useState } from 'react'
 import { paths } from '../Router'
-import makeUrlPathRelative from '../lib/makeUrlPathRelative'
 import { Models } from '@kittycad/lib'
 import { useGlobalStateContext } from 'hooks/useGlobalStateContext'
+import { useAbsoluteFilePath } from 'hooks/useAbsoluteFilePath'

 type User = Models['User_type']

 const UserSidebarMenu = ({ user }: { user?: User }) => {
  const location = useLocation()
+  const filePath = useAbsoluteFilePath()
  const displayedName = getDisplayName(user)
  const [imageLoadFailed, setImageLoadFailed] = useState(false)
  const navigate = useNavigate()
-  const {
-    auth: { send },
-  } = useGlobalStateContext()
+  const send = useGlobalStateContext()?.auth?.send

  // Fallback logic for displaying user's "name":
  // 1. user.name
@ -127,11 +131,10 @@ const UserSidebarMenu = ({ user }: { user?: User }) => {
                    // since /settings is a nested route the sidebar doesn't close
                    // automatically when navigating to it
                    close()
-                    navigate(
-                      (location.pathname.endsWith('/')
-                        ? location.pathname.slice(0, -1)
-                        : location.pathname) + paths.SETTINGS
-                    )
+                    const targetPath = location.pathname.includes(paths.FILE)
+                      ? filePath + paths.SETTINGS
+                      : paths.HOME + paths.SETTINGS
+                    navigate(targetPath)
                  }}
                >
                  Settings
@ -144,6 +147,14 @@ const UserSidebarMenu = ({ user }: { user?: User }) => {
                >
                  Request a feature
                </ActionButton>
+                <ActionButton
+                  Element="externalLink"
+                  to="https://github.com/KittyCAD/modeling-app/issues/new"
+                  icon={{ icon: faBug }}
+                  className="border-transparent dark:border-transparent dark:hover:border-liquid-60"
+                >
+                  Report a bug
+                </ActionButton>
                <ActionButton
                  Element="button"
                  onClick={() => send('Log out')}
--- a/src/components/WasmErrBanner.tsx
+++ b/src/components/WasmErrBanner.tsx
@ -0,0 +1,63 @@
+import { Dialog } from '@headlessui/react'
+import { useState } from 'react'
+import { ActionButton } from './ActionButton'
+import { faX } from '@fortawesome/free-solid-svg-icons'
+import { useKclContext } from 'lang/KclSinglton'
+
+export function WasmErrBanner() {
+  const [isBannerDismissed, setBannerDismissed] = useState(false)
+
+  const { wasmInitFailed } = useKclContext()
+
+  if (!wasmInitFailed) return null
+
+  return (
+    <Dialog
+      className="fixed inset-0 top-auto z-50 bg-warn-20 text-warn-80 px-8 py-4"
+      open={!isBannerDismissed}
+      onClose={() => ({})}
+    >
+      <Dialog.Panel className="max-w-3xl mx-auto">
+        <div className="flex gap-2 justify-between items-start">
+          <h2 className="text-xl font-bold mb-4">
+            Problem with our WASM blob :(
+          </h2>
+          <ActionButton
+            Element="button"
+            onClick={() => setBannerDismissed(true)}
+            icon={{
+              icon: faX,
+              bgClassName:
+                'bg-warn-70 hover:bg-warn-80 dark:bg-warn-70 dark:hover:bg-warn-80',
+              iconClassName:
+                'text-warn-10 group-hover:text-warn-10 dark:text-warn-10 dark:group-hover:text-warn-10',
+            }}
+            className="!p-0 !bg-transparent !border-transparent"
+          />
+        </div>
+        <p>
+          <a
+            href="https://webassembly.org/"
+            rel="noopener noreferrer"
+            target="_blank"
+            className="text-warn-80 dark:text-warn-80 dark:hover:text-warn-70 underline"
+          >
+            WASM or web assembly
+          </a>{' '}
+          is core part of how our app works. It might because you OS is not
+          up-to-date. If you're able to update your OS to a later version, try
+          that. If not create an issue on{' '}
+          <a
+            href="https://github.com/KittyCAD/modeling-app"
+            rel="noopener noreferrer"
+            target="_blank"
+            className="text-warn-80 dark:text-warn-80 dark:hover:text-warn-70 underline"
+          >
+            our Github
+          </a>
+          .
+        </p>
+      </Dialog.Panel>
+    </Dialog>
+  )
+}
--- a/src/editor/lsp/language.ts
+++ b/src/editor/lsp/language.ts
@ -9,6 +9,7 @@ import { LanguageServerClient } from '.'
 import { kclPlugin } from './plugin'
 import type * as LSP from 'vscode-languageserver-protocol'
 import { parser as jsParser } from '@lezer/javascript'
+import { EditorState } from '@uiw/react-codemirror'

 const data = defineLanguageFacet({})

@ -22,7 +23,25 @@ export default function kclLanguage(options: LanguageOptions): LanguageSupport {
  // For now let's use the javascript parser.
  // It works really well and has good syntax highlighting.
  // We can use our lsp for the rest.
-  const lang = new Language(data, jsParser, [], 'kcl')
+  const lang = new Language(
+    data,
+    jsParser,
+    [
+      EditorState.languageData.of(() => [
+        {
+          // https://codemirror.net/docs/ref/#commands.CommentTokens
+          commentTokens: {
+            line: '//',
+            block: {
+              open: '/*',
+              close: '*/',
+            },
+          },
+        },
+      ]),
+    ],
+    'kcl'
+  )

  // Create our supporting extension.
  const kclLsp = kclPlugin({
--- a/src/env.ts
+++ b/src/env.ts
@ -1,8 +1,5 @@
-// all web app environment variables are defined here, jest doesn't like import.meta.env so centralising them here
-// allows us to mock them in one place, see src/setupTests.ts, it pulls the variable names and valuse from .env.development
-// note the exported variable name must match the env var name for the jest mocks to work
-// i.e. const VITE_MY_VAR = import.meta.env.VITE_MY_VAR
-// Maybe this file should be generated in a GHA from .env.development?
+// env vars were centralised so they could be mocked in jest
+// but isn't needed anymore with vite, so is now just a convention

 export const VITE_KC_API_WS_MODELING_URL = import.meta.env
  .VITE_KC_API_WS_MODELING_URL
@ -12,3 +9,4 @@ export const VITE_KC_CONNECTION_TIMEOUT_MS = import.meta.env
  .VITE_KC_CONNECTION_TIMEOUT_MS
 export const VITE_KC_SENTRY_DSN = import.meta.env.VITE_KC_SENTRY_DSN
 export const TEST = import.meta.env.TEST
+export const DEV = import.meta.env.DEV
--- a/src/hooks/useAbsoluteFilePath.ts
+++ b/src/hooks/useAbsoluteFilePath.ts
@ -0,0 +1,12 @@
+import { BROWSER_FILE_NAME, IndexLoaderData, paths } from 'Router'
+import { useRouteLoaderData } from 'react-router-dom'
+
+export function useAbsoluteFilePath() {
+  const routeData = useRouteLoaderData(paths.FILE) as IndexLoaderData
+
+  return (
+    paths.FILE +
+    '/' +
+    encodeURIComponent(routeData?.file?.path || BROWSER_FILE_NAME)
+  )
+}
--- a/src/hooks/useAppMode.ts
+++ b/src/hooks/useAppMode.ts
@ -1,289 +0,0 @@
-// needed somewhere to dump this logic,
-// Once we have xState this should be removed
-
-import { useStore, Selections } from 'useStore'
-import { useEffect, useState } from 'react'
-import { v4 as uuidv4 } from 'uuid'
-import { ArtifactMap, EngineCommandManager } from 'lang/std/engineConnection'
-import { Models } from '@kittycad/lib/dist/types/src'
-import { isReducedMotion } from 'lang/util'
-import { isOverlap } from 'lib/utils'
-import { engineCommandManager } from '../lang/std/engineConnection'
-
-interface DefaultPlanes {
-  xy: string
-  // TODO re-enable
-  // yz: string
-  // xz: string
-}
-
-export function useAppMode() {
-  const { guiMode, setGuiMode, selectionRanges, selectionRangeTypeMap } =
-    useStore((s) => ({
-      guiMode: s.guiMode,
-      setGuiMode: s.setGuiMode,
-      selectionRanges: s.selectionRanges,
-      selectionRangeTypeMap: s.selectionRangeTypeMap,
-    }))
-  const [defaultPlanes, setDefaultPlanes] = useState<DefaultPlanes | null>(null)
-  useEffect(() => {
-    if (
-      guiMode.mode === 'sketch' &&
-      guiMode.sketchMode === 'selectFace' &&
-      engineCommandManager
-    ) {
-      const createAndShowPlanes = async () => {
-        let localDefaultPlanes: DefaultPlanes
-        if (!defaultPlanes) {
-          localDefaultPlanes = await initDefaultPlanes(engineCommandManager)
-          setDefaultPlanes(localDefaultPlanes)
-        } else {
-          localDefaultPlanes = defaultPlanes
-        }
-        setDefaultPlanesHidden(engineCommandManager, localDefaultPlanes, false)
-      }
-      createAndShowPlanes()
-    }
-    if (
-      guiMode.mode === 'sketch' &&
-      guiMode.sketchMode === 'enterSketchEdit' &&
-      engineCommandManager
-    ) {
-      const enableSketchMode = async () => {
-        let localDefaultPlanes: DefaultPlanes
-        if (!defaultPlanes) {
-          localDefaultPlanes = await initDefaultPlanes(engineCommandManager)
-          setDefaultPlanes(localDefaultPlanes)
-        } else {
-          localDefaultPlanes = defaultPlanes
-        }
-        setDefaultPlanesHidden(engineCommandManager, localDefaultPlanes, true)
-        // TODO figure out the plane to use based on the sketch
-        // maybe it's easier to make a new plane than rely on the defaults
-        await engineCommandManager.sendSceneCommand({
-          type: 'modeling_cmd_req',
-          cmd_id: uuidv4(),
-          cmd: {
-            type: 'sketch_mode_enable',
-            plane_id: localDefaultPlanes.xy,
-            ortho: true,
-            animated: !isReducedMotion(),
-          },
-        })
-        const proms: any[] = []
-        proms.push(
-          engineCommandManager.sendSceneCommand({
-            type: 'modeling_cmd_req',
-            cmd_id: uuidv4(),
-            cmd: {
-              type: 'edit_mode_enter',
-              target: guiMode.pathId,
-            },
-          })
-        )
-        await Promise.all(proms)
-      }
-      enableSketchMode()
-      setGuiMode({
-        ...guiMode,
-        sketchMode: 'sketchEdit',
-      })
-    }
-    if (guiMode.mode !== 'sketch' && defaultPlanes) {
-      setDefaultPlanesHidden(engineCommandManager, defaultPlanes, true)
-    }
-    if (guiMode.mode === 'default') {
-      const pathId =
-        engineCommandManager &&
-        isCursorInSketchCommandRange(
-          engineCommandManager.artifactMap,
-          selectionRanges
-        )
-      if (pathId) {
-        setGuiMode({
-          mode: 'canEditSketch',
-          rotation: [0, 0, 0, 1],
-          position: [0, 0, 0],
-          pathToNode: [],
-          pathId,
-        })
-      }
-    } else if (guiMode.mode === 'canEditSketch') {
-      if (
-        !engineCommandManager ||
-        !isCursorInSketchCommandRange(
-          engineCommandManager.artifactMap,
-          selectionRanges
-        )
-      ) {
-        setGuiMode({
-          mode: 'default',
-        })
-      }
-    }
-  }, [
-    guiMode,
-    guiMode.mode,
-    engineCommandManager,
-    selectionRanges,
-    selectionRangeTypeMap,
-  ])
-
-  useEffect(() => {
-    const unSub = engineCommandManager.subscribeTo({
-      event: 'select_with_point',
-      callback: async ({ data }) => {
-        if (!data.entity_id) return
-        if (!defaultPlanes) return
-        if (!Object.values(defaultPlanes || {}).includes(data.entity_id)) {
-          // user clicked something else in the scene
-          return
-        }
-        const sketchModeResponse = await engineCommandManager.sendSceneCommand({
-          type: 'modeling_cmd_req',
-          cmd_id: uuidv4(),
-          cmd: {
-            type: 'sketch_mode_enable',
-            plane_id: data.entity_id,
-            ortho: true,
-            animated: !isReducedMotion(),
-          },
-        })
-        setDefaultPlanesHidden(engineCommandManager, defaultPlanes, true)
-        const sketchUuid = uuidv4()
-        const proms: any[] = []
-        proms.push(
-          engineCommandManager.sendSceneCommand({
-            type: 'modeling_cmd_req',
-            cmd_id: sketchUuid,
-            cmd: {
-              type: 'start_path',
-            },
-          })
-        )
-        proms.push(
-          engineCommandManager.sendSceneCommand({
-            type: 'modeling_cmd_req',
-            cmd_id: uuidv4(),
-            cmd: {
-              type: 'edit_mode_enter',
-              target: sketchUuid,
-            },
-          })
-        )
-        await Promise.all(proms)
-        setGuiMode({
-          mode: 'sketch',
-          sketchMode: 'sketchEdit',
-          rotation: [0, 0, 0, 1],
-          position: [0, 0, 0],
-          pathToNode: [],
-          pathId: sketchUuid,
-        })
-
-        console.log('sketchModeResponse', sketchModeResponse)
-      },
-    })
-    return unSub
-  }, [engineCommandManager, defaultPlanes])
-}
-
-async function createPlane(
-  engineCommandManager: EngineCommandManager,
-  {
-    x_axis,
-    y_axis,
-    color,
-  }: {
-    x_axis: Models['Point3d_type']
-    y_axis: Models['Point3d_type']
-    color: Models['Color_type']
-  }
-) {
-  const planeId = uuidv4()
-  await engineCommandManager.sendSceneCommand({
-    type: 'modeling_cmd_req',
-    cmd: {
-      type: 'make_plane',
-      size: 60,
-      origin: { x: 0, y: 0, z: 0 },
-      x_axis,
-      y_axis,
-      clobber: false,
-    },
-    cmd_id: planeId,
-  })
-  await engineCommandManager.sendSceneCommand({
-    type: 'modeling_cmd_req',
-    cmd: {
-      type: 'plane_set_color',
-      plane_id: planeId,
-      color,
-    },
-    cmd_id: uuidv4(),
-  })
-  return planeId
-}
-
-function setDefaultPlanesHidden(
-  engineCommandManager: EngineCommandManager,
-  defaultPlanes: DefaultPlanes,
-  hidden: boolean
-) {
-  Object.values(defaultPlanes).forEach((planeId) => {
-    engineCommandManager.sendSceneCommand({
-      type: 'modeling_cmd_req',
-      cmd_id: uuidv4(),
-      cmd: {
-        type: 'object_visible',
-        object_id: planeId,
-        hidden: hidden,
-      },
-    })
-  })
-}
-
-async function initDefaultPlanes(
-  engineCommandManager: EngineCommandManager
-): Promise<DefaultPlanes> {
-  const xy = await createPlane(engineCommandManager, {
-    x_axis: { x: 1, y: 0, z: 0 },
-    y_axis: { x: 0, y: 1, z: 0 },
-    color: { r: 0.7, g: 0.28, b: 0.28, a: 0.4 },
-  })
-  // TODO re-enable
-  // const yz = createPlane(engineCommandManager, {
-  //   x_axis: { x: 0, y: 1, z: 0 },
-  //   y_axis: { x: 0, y: 0, z: 1 },
-  //   color: { r: 0.28, g: 0.7, b: 0.28, a: 0.4 },
-  // })
-  // const xz = createPlane(engineCommandManager, {
-  //   x_axis: { x: 1, y: 0, z: 0 },
-  //   y_axis: { x: 0, y: 0, z: 1 },
-  //   color: { r: 0.28, g: 0.28, b: 0.7, a: 0.4 },
-  // })
-  return { xy }
-}
-
-function isCursorInSketchCommandRange(
-  artifactMap: ArtifactMap,
-  selectionRanges: Selections
-): string | false {
-  const overlapingEntries = Object.entries(artifactMap || {}).filter(
-    ([id, artifact]) =>
-      selectionRanges.codeBasedSelections.some(
-        (selection) =>
-          Array.isArray(selection?.range) &&
-          Array.isArray(artifact?.range) &&
-          isOverlap(selection.range, artifact.range) &&
-          (artifact.commandType === 'start_path' ||
-            artifact.commandType === 'extend_path' ||
-            artifact.commandType === 'close_path')
-      )
-  )
-  return overlapingEntries.length && overlapingEntries[0][1].parentId
-    ? overlapingEntries[0][1].parentId
-    : overlapingEntries.find(
-        ([, artifact]) => artifact.commandType === 'start_path'
-      )?.[0] || false
-}
--- a/src/hooks/useEngineConnectionSubscriptions.ts
+++ b/src/hooks/useEngineConnectionSubscriptions.ts
@ -1,13 +1,23 @@
 import { useEffect } from 'react'
 import { useStore } from 'useStore'
 import { engineCommandManager } from '../lang/std/engineConnection'
+import { useModelingContext } from './useModelingContext'
+import { v4 as uuidv4 } from 'uuid'
+import { SourceRange } from 'lang/wasm'
+import { getEventForSelectWithPoint } from 'lib/selections'

 export function useEngineConnectionSubscriptions() {
-  const { setCursor2, setHighlightRange, highlightRange } = useStore((s) => ({
-    setCursor2: s.setCursor2,
+  const { setHighlightRange, highlightRange } = useStore((s) => ({
    setHighlightRange: s.setHighlightRange,
    highlightRange: s.highlightRange,
  }))
+  const { send, context } = useModelingContext()
+
+  interface RangeAndId {
+    id: string
+    range: SourceRange
+  }
+
  useEffect(() => {
    if (!engineCommandManager) return

@ -16,7 +26,7 @@ export function useEngineConnectionSubscriptions() {
      callback: ({ data }) => {
        if (data?.entity_id) {
          const sourceRange =
-            engineCommandManager.sourceRangeMap[data.entity_id]
+            engineCommandManager.artifactMap?.[data.entity_id]?.range
          setHighlightRange(sourceRange)
        } else if (
          !highlightRange ||
@ -28,18 +38,21 @@ export function useEngineConnectionSubscriptions() {
    })
    const unSubClick = engineCommandManager.subscribeTo({
      event: 'select_with_point',
-      callback: ({ data }) => {
-        if (!data?.entity_id) {
-          setCursor2()
-          return
-        }
-        const sourceRange = engineCommandManager.sourceRangeMap[data.entity_id]
-        setCursor2({ range: sourceRange, type: 'default' })
+      callback: async (engineEvent) => {
+        const event = await getEventForSelectWithPoint(engineEvent, {
+          sketchEnginePathId: context.sketchEnginePathId,
+        })
+        send(event)
      },
    })
    return () => {
      unSubHover()
      unSubClick()
    }
-  }, [engineCommandManager, setCursor2, setHighlightRange, highlightRange])
+  }, [
+    engineCommandManager,
+    setHighlightRange,
+    highlightRange,
+    context.sketchEnginePathId,
+  ])
 }
--- a/src/hooks/useFileContext.ts
+++ b/src/hooks/useFileContext.ts
@ -0,0 +1,6 @@
+import { FileContext } from 'components/FileMachineProvider'
+import { useContext } from 'react'
+
+export const useFileContext = () => {
+  return useContext(FileContext)
+}
--- a/src/hooks/useModelingContext.ts
+++ b/src/hooks/useModelingContext.ts
@ -0,0 +1,6 @@
+import { ModelingMachineContext } from 'components/ModelingMachineProvider'
+import { useContext } from 'react'
+
+export const useModelingContext = () => {
+  return useContext(ModelingMachineContext)
+}
--- a/src/hooks/useSetupEngineManager.ts
+++ b/src/hooks/useSetupEngineManager.ts
@ -1,9 +1,9 @@
 import { useLayoutEffect, useEffect, useRef } from 'react'
-import { _executor } from '../lang/wasm'
+import { _executor, parse } from '../lang/wasm'
 import { useStore } from '../useStore'
 import { engineCommandManager } from '../lang/std/engineConnection'
 import { deferExecution } from 'lib/utils'
-import { v4 as uuidv4 } from 'uuid'
+import { kclManager } from 'lang/KclSinglton'

 export function useSetupEngineManager(
  streamRef: React.RefObject<HTMLDivElement>,
@ -14,13 +14,11 @@ export function useSetupEngineManager(
    setIsStreamReady,
    setStreamDimensions,
    streamDimensions,
-    executeCode,
  } = useStore((s) => ({
    setMediaStream: s.setMediaStream,
    setIsStreamReady: s.setIsStreamReady,
    setStreamDimensions: s.setStreamDimensions,
    streamDimensions: s.streamDimensions,
-    executeCode: s.executeCode,
  }))

  const streamWidth = streamRef?.current?.offsetWidth
@ -28,6 +26,10 @@ export function useSetupEngineManager(

  const hasSetNonZeroDimensions = useRef<boolean>(false)

+  useEffect(() => {
+    kclManager.executeCode()
+  }, [])
+
  useLayoutEffect(() => {
    // Load the engine command manager once with the initial width and height,
    // then we do not want to reload it.
@ -41,7 +43,10 @@ export function useSetupEngineManager(
        setIsStreamReady,
        width: quadWidth,
        height: quadHeight,
-        executeCode,
+        executeCode: (code?: string) => {
+          const _ast = parse(code || kclManager.code)
+          return kclManager.executeAst(_ast, true)
+        },
        token,
      })
      setStreamDimensions({
--- a/src/hooks/useToolbarGuards.ts
+++ b/src/hooks/useToolbarGuards.ts
@ -1,52 +1,45 @@
-import { SetVarNameModal } from 'components/SetVarNameModal'
+import {
+  SetVarNameModal,
+  createSetVarNameModal,
+} from 'components/SetVarNameModal'
+import { kclManager } from 'lang/KclSinglton'
 import { moveValueIntoNewVariable } from 'lang/modifyAst'
 import { isNodeSafeToReplace } from 'lang/queryAst'
 import { useEffect, useState } from 'react'
-import { create } from 'react-modal-promise'
-import { useStore } from 'useStore'
+import { useModelingContext } from './useModelingContext'

-const getModalInfo = create(SetVarNameModal as any)
+const getModalInfo = createSetVarNameModal(SetVarNameModal)

 export function useConvertToVariable() {
-  const { guiMode, selectionRanges, ast, programMemory, updateAst } = useStore(
-    (s) => ({
-      guiMode: s.guiMode,
-      ast: s.ast,
-      updateAst: s.updateAst,
-      selectionRanges: s.selectionRanges,
-      programMemory: s.programMemory,
-    })
-  )
+  const { context } = useModelingContext()
  const [enable, setEnabled] = useState(false)
  useEffect(() => {
-    if (!ast) return
-
    const { isSafe, value } = isNodeSafeToReplace(
-      ast,
-      selectionRanges.codeBasedSelections?.[0]?.range || []
+      kclManager.ast,
+      context.selectionRanges.codeBasedSelections?.[0]?.range || []
    )
    const canReplace = isSafe && value.type !== 'Identifier'
-    const isOnlyOneSelection = selectionRanges.codeBasedSelections.length === 1
+    const isOnlyOneSelection =
+      context.selectionRanges.codeBasedSelections.length === 1

    const _enableHorz = canReplace && isOnlyOneSelection
    setEnabled(_enableHorz)
-  }, [guiMode, selectionRanges])
+  }, [context.selectionRanges])

  const handleClick = async () => {
-    if (!ast) return
    try {
      const { variableName } = await getModalInfo({
        valueName: 'var',
-      } as any)
+      })

      const { modifiedAst: _modifiedAst } = moveValueIntoNewVariable(
-        ast,
-        programMemory,
-        selectionRanges.codeBasedSelections[0].range,
+        kclManager.ast,
+        kclManager.programMemory,
+        context.selectionRanges.codeBasedSelections[0].range,
        variableName
      )

-      updateAst(_modifiedAst, true)
+      kclManager.updateAst(_modifiedAst, true)
    } catch (e) {
      console.log('error', e)
    }
--- a/src/index.tsx
+++ b/src/index.tsx
@ -4,6 +4,13 @@ import reportWebVitals from './reportWebVitals'
 import { Toaster } from 'react-hot-toast'
 import { Router } from './Router'
 import { HotkeysProvider } from 'react-hotkeys-hook'
+import { inspect } from '@xstate/inspect'
+import { DEV } from 'env'
+
+if (DEV)
+  inspect({
+    iframe: false,
+  })

 const root = ReactDOM.createRoot(document.getElementById('root') as HTMLElement)

--- a/src/lang/KclSinglton.tsx
+++ b/src/lang/KclSinglton.tsx
@ -0,0 +1,387 @@
+import { executeAst, executeCode } from 'useStore'
+import { Selections } from 'lib/selections'
+import { KCLError } from './errors'
+import {
+  EngineCommandManager,
+  engineCommandManager,
+} from './std/engineConnection'
+import { deferExecution } from 'lib/utils'
+import {
+  initPromise,
+  parse,
+  PathToNode,
+  Program,
+  ProgramMemory,
+  recast,
+} from 'lang/wasm'
+import { bracket } from 'lib/exampleKcl'
+import { createContext, useContext, useEffect, useState } from 'react'
+import { getNodeFromPath } from './queryAst'
+import { IndexLoaderData } from 'Router'
+import { useLoaderData } from 'react-router-dom'
+
+const PERSIST_CODE_TOKEN = 'persistCode'
+
+class KclManager {
+  private _code = bracket
+  private _ast: Program = {
+    body: [],
+    start: 0,
+    end: 0,
+    nonCodeMeta: {
+      nonCodeNodes: {},
+      start: [],
+    },
+  }
+  private _programMemory: ProgramMemory = {
+    root: {},
+    return: null,
+  }
+  private _logs: string[] = []
+  private _kclErrors: KCLError[] = []
+  private _isExecuting = false
+  private _wasmInitFailed = true
+
+  engineCommandManager: EngineCommandManager
+  private _defferer = deferExecution((code: string) => {
+    const ast = parse(code)
+    this.executeAst(ast)
+  }, 600)
+
+  private _isExecutingCallback: (arg: boolean) => void = () => {}
+  private _codeCallBack: (arg: string) => void = () => {}
+  private _astCallBack: (arg: Program) => void = () => {}
+  private _programMemoryCallBack: (arg: ProgramMemory) => void = () => {}
+  private _logsCallBack: (arg: string[]) => void = () => {}
+  private _kclErrorsCallBack: (arg: KCLError[]) => void = () => {}
+  private _wasmInitFailedCallback: (arg: boolean) => void = () => {}
+  private _executeCallback: () => void = () => {}
+
+  get ast() {
+    return this._ast
+  }
+  set ast(ast) {
+    this._ast = ast
+    this._astCallBack(ast)
+  }
+
+  get code() {
+    return this._code
+  }
+  set code(code) {
+    this._code = code
+    this._codeCallBack(code)
+  }
+
+  get programMemory() {
+    return this._programMemory
+  }
+  set programMemory(programMemory) {
+    this._programMemory = programMemory
+    this._programMemoryCallBack(programMemory)
+  }
+
+  get defaultPlanes() {
+    return this?.engineCommandManager?.defaultPlanes
+  }
+
+  get logs() {
+    return this._logs
+  }
+  set logs(logs) {
+    this._logs = logs
+    this._logsCallBack(logs)
+  }
+
+  get kclErrors() {
+    return this._kclErrors
+  }
+  set kclErrors(kclErrors) {
+    this._kclErrors = kclErrors
+    this._kclErrorsCallBack(kclErrors)
+  }
+
+  get isExecuting() {
+    return this._isExecuting
+  }
+  set isExecuting(isExecuting) {
+    this._isExecuting = isExecuting
+    this._isExecutingCallback(isExecuting)
+  }
+
+  get wasmInitFailed() {
+    return this._wasmInitFailed
+  }
+  set wasmInitFailed(wasmInitFailed) {
+    this._wasmInitFailed = wasmInitFailed
+    this._wasmInitFailedCallback(wasmInitFailed)
+  }
+
+  constructor(engineCommandManager: EngineCommandManager) {
+    this.engineCommandManager = engineCommandManager
+    const storedCode = localStorage.getItem(PERSIST_CODE_TOKEN)
+    // TODO #819 remove zustand persistance logic in a few months
+    // short term migration, shouldn't make a difference for tauri app users
+    // anyway since that's filesystem based.
+    const zustandStore = JSON.parse(localStorage.getItem('store') || '{}')
+    if (storedCode === null && zustandStore?.state?.code) {
+      this.code = zustandStore.state.code
+      localStorage.setItem(PERSIST_CODE_TOKEN, this._code)
+      zustandStore.state.code = ''
+      localStorage.setItem('store', JSON.stringify(zustandStore))
+    } else if (storedCode === null) {
+      this.code = bracket
+    } else {
+      this.code = storedCode
+    }
+  }
+  registerCallBacks({
+    setCode,
+    setProgramMemory,
+    setAst,
+    setLogs,
+    setKclErrors,
+    setIsExecuting,
+    setWasmInitFailed,
+  }: {
+    setCode: (arg: string) => void
+    setProgramMemory: (arg: ProgramMemory) => void
+    setAst: (arg: Program) => void
+    setLogs: (arg: string[]) => void
+    setKclErrors: (arg: KCLError[]) => void
+    setIsExecuting: (arg: boolean) => void
+    setWasmInitFailed: (arg: boolean) => void
+  }) {
+    this._codeCallBack = setCode
+    this._programMemoryCallBack = setProgramMemory
+    this._astCallBack = setAst
+    this._logsCallBack = setLogs
+    this._kclErrorsCallBack = setKclErrors
+    this._isExecutingCallback = setIsExecuting
+    this._wasmInitFailedCallback = setWasmInitFailed
+  }
+  registerExecuteCallback(callback: () => void) {
+    this._executeCallback = callback
+  }
+
+  async ensureWasmInit() {
+    try {
+      await initPromise
+      if (this.wasmInitFailed) {
+        this.wasmInitFailed = false
+      }
+    } catch (e) {
+      this.wasmInitFailed = true
+    }
+  }
+
+  async executeAst(ast: Program = this._ast, updateCode = false) {
+    await this.ensureWasmInit()
+    this.isExecuting = true
+    const { logs, errors, programMemory } = await executeAst({
+      ast,
+      engineCommandManager: this.engineCommandManager,
+      defaultPlanes: this.defaultPlanes,
+    })
+    this.isExecuting = false
+    this._logs = logs
+    this._kclErrors = errors
+    this._programMemory = programMemory
+    this._ast = { ...ast }
+    if (updateCode) {
+      this._code = recast(ast)
+      this._codeCallBack(this._code)
+    }
+    this._executeCallback()
+  }
+  async executeAstMock(ast: Program = this._ast, updateCode = false) {
+    await this.ensureWasmInit()
+    const newCode = recast(ast)
+    const newAst = parse(newCode)
+    await this?.engineCommandManager?.waitForReady
+    if (updateCode) {
+      this.setCode(recast(ast))
+    }
+    this._ast = { ...newAst }
+
+    const { logs, errors, programMemory } = await executeAst({
+      ast: newAst,
+      engineCommandManager: this.engineCommandManager,
+      defaultPlanes: this.defaultPlanes,
+      useFakeExecutor: true,
+    })
+    this._logs = logs
+    this._kclErrors = errors
+    this._programMemory = programMemory
+  }
+  async executeCode(code?: string) {
+    await this.ensureWasmInit()
+    await this?.engineCommandManager?.waitForReady
+    if (!this?.engineCommandManager?.planesInitialized()) return
+    const result = await executeCode({
+      engineCommandManager,
+      code: code || this._code,
+      lastAst: this._ast,
+      defaultPlanes: this.defaultPlanes,
+      force: false,
+    })
+    if (!result.isChange) return
+    const { logs, errors, programMemory, ast } = result
+    this.logs = logs
+    this.kclErrors = errors
+    this.programMemory = programMemory
+    this.ast = ast
+    if (code) this.code = code
+  }
+  setCode(code: string) {
+    this._code = code
+    this._codeCallBack(code)
+    localStorage.setItem(PERSIST_CODE_TOKEN, code)
+  }
+  setCodeAndExecute(code: string) {
+    this.setCode(code)
+    if (code.trim()) {
+      this._defferer(code)
+      return
+    }
+    this._ast = {
+      body: [],
+      start: 0,
+      end: 0,
+      nonCodeMeta: {
+        nonCodeNodes: {},
+        start: [],
+      },
+    }
+    this._programMemory = {
+      root: {},
+      return: null,
+    }
+    this.engineCommandManager.endSession()
+  }
+  format() {
+    this.code = recast(parse(kclManager.code))
+  }
+  // There's overlapping resposibility between updateAst and executeAst.
+  // updateAst was added as it was used a lot before xState migration so makes the port easier.
+  // but should probably have think about which of the function to keep
+  async updateAst(
+    ast: Program,
+    execute: boolean,
+    optionalParams?: {
+      focusPath?: PathToNode
+      callBack?: (ast: Program) => void
+    }
+  ): Promise<Selections | null> {
+    const newCode = recast(ast)
+    const astWithUpdatedSource = parse(newCode)
+    optionalParams?.callBack?.(astWithUpdatedSource)
+    let returnVal: Selections | null = null
+
+    this.code = newCode
+    if (optionalParams?.focusPath) {
+      const { node } = getNodeFromPath<any>(
+        astWithUpdatedSource,
+        optionalParams?.focusPath
+      )
+      const { start, end } = node
+      if (!start || !end) return null
+      returnVal = {
+        codeBasedSelections: [
+          {
+            type: 'default',
+            range: [start, end],
+          },
+        ],
+        otherSelections: [],
+      }
+    }
+
+    if (execute) {
+      // Call execute on the set ast.
+      await this.executeAst(astWithUpdatedSource)
+    } else {
+      // When we don't re-execute, we still want to update the program
+      // memory with the new ast. So we will hit the mock executor
+      // instead.
+      await this.executeAstMock(astWithUpdatedSource)
+    }
+    return returnVal
+  }
+
+  getPlaneId(axis: 'xy' | 'xz' | 'yz'): string {
+    return this.defaultPlanes[axis]
+  }
+
+  showPlanes() {
+    this.engineCommandManager.setPlaneHidden(this.defaultPlanes.xy, false)
+    this.engineCommandManager.setPlaneHidden(this.defaultPlanes.yz, false)
+    this.engineCommandManager.setPlaneHidden(this.defaultPlanes.xz, false)
+  }
+
+  hidePlanes() {
+    this.engineCommandManager.setPlaneHidden(this.defaultPlanes.xy, true)
+    this.engineCommandManager.setPlaneHidden(this.defaultPlanes.yz, true)
+    this.engineCommandManager.setPlaneHidden(this.defaultPlanes.xz, true)
+  }
+}
+
+export const kclManager = new KclManager(engineCommandManager)
+
+const KclContext = createContext({
+  code: kclManager.code,
+  programMemory: kclManager.programMemory,
+  ast: kclManager.ast,
+  isExecuting: kclManager.isExecuting,
+  errors: kclManager.kclErrors,
+  logs: kclManager.logs,
+  wasmInitFailed: kclManager.wasmInitFailed,
+})
+
+export function useKclContext() {
+  return useContext(KclContext)
+}
+
+export function KclContextProvider({
+  children,
+}: {
+  children: React.ReactNode
+}) {
+  // If we try to use this component anywhere but under the paths.FILE route it will fail
+  // Because useLoaderData assumes we are on within it's context.
+  const { code: loadedCode } = useLoaderData() as IndexLoaderData
+  const [code, setCode] = useState(loadedCode || kclManager.code)
+  const [programMemory, setProgramMemory] = useState(kclManager.programMemory)
+  const [ast, setAst] = useState(kclManager.ast)
+  const [isExecuting, setIsExecuting] = useState(false)
+  const [errors, setErrors] = useState<KCLError[]>([])
+  const [logs, setLogs] = useState<string[]>([])
+  const [wasmInitFailed, setWasmInitFailed] = useState(false)
+
+  useEffect(() => {
+    kclManager.registerCallBacks({
+      setCode,
+      setProgramMemory,
+      setAst,
+      setLogs,
+      setKclErrors: setErrors,
+      setIsExecuting,
+      setWasmInitFailed,
+    })
+  }, [])
+  return (
+    <KclContext.Provider
+      value={{
+        code,
+        programMemory,
+        ast,
+        isExecuting,
+        errors,
+        logs,
+        wasmInitFailed,
+      }}
+    >
+      {children}
+    </KclContext.Provider>
+  )
+}
--- a/src/lang/abstractSyntaxTree.test.ts
+++ b/src/lang/abstractSyntaxTree.test.ts
@ -141,42 +141,6 @@ const newVar = myVar + 1
 })

 describe('testing function declaration', () => {
-  test('fn funcN = () => {}', () => {
-    const { body } = parse('fn funcN = () => {}')
-    delete (body[0] as any).declarations[0].init.body.nonCodeMeta
-    expect(body).toEqual([
-      {
-        type: 'VariableDeclaration',
-        start: 0,
-        end: 19,
-        kind: 'fn',
-        declarations: [
-          {
-            type: 'VariableDeclarator',
-            start: 3,
-            end: 19,
-            id: {
-              type: 'Identifier',
-              start: 3,
-              end: 8,
-              name: 'funcN',
-            },
-            init: {
-              type: 'FunctionExpression',
-              start: 11,
-              end: 19,
-              params: [],
-              body: {
-                start: 17,
-                end: 19,
-                body: [],
-              },
-            },
-          },
-        ],
-      },
-    ])
-  })
  test('fn funcN = (a, b) => {return a + b}', () => {
    const { body } = parse(
      ['fn funcN = (a, b) => {', '  return a + b', '}'].join('\n')
@ -1513,22 +1477,23 @@ const key = 'c'`
    const nonCodeMetaInstance = {
      type: 'NonCodeNode',
      start: code.indexOf('\n// this is a comment'),
-      end: code.indexOf('const key'),
+      end: code.indexOf('const key') - 1,
      value: {
        type: 'blockComment',
+        style: 'line',
        value: 'this is a comment',
      },
    }
    const { nonCodeMeta } = parse(code)
-    expect(nonCodeMeta.nonCodeNodes[0]).toEqual(nonCodeMetaInstance)
+    expect(nonCodeMeta.nonCodeNodes[0][0]).toEqual(nonCodeMetaInstance)

    // extra whitespace won't change it's position (0) or value (NB the start end would have changed though)
    const codeWithExtraStartWhitespace = '\n\n\n' + code
    const { nonCodeMeta: nonCodeMeta2 } = parse(codeWithExtraStartWhitespace)
-    expect(nonCodeMeta2.nonCodeNodes[0].value).toStrictEqual(
+    expect(nonCodeMeta2.nonCodeNodes[0][0].value).toStrictEqual(
      nonCodeMetaInstance.value
    )
-    expect(nonCodeMeta2.nonCodeNodes[0].start).not.toBe(
+    expect(nonCodeMeta2.nonCodeNodes[0][0].start).not.toBe(
      nonCodeMetaInstance.start
    )
  })
@ -1546,12 +1511,13 @@ const key = 'c'`
    const indexOfSecondLineToExpression = 2
    const sketchNonCodeMeta = (body as any)[0].declarations[0].init.nonCodeMeta
      .nonCodeNodes
-    expect(sketchNonCodeMeta[indexOfSecondLineToExpression]).toEqual({
+    expect(sketchNonCodeMeta[indexOfSecondLineToExpression][0]).toEqual({
      type: 'NonCodeNode',
      start: 106,
-      end: 166,
+      end: 163,
      value: {
-        type: 'blockComment',
+        type: 'inlineComment',
+        style: 'block',
        value: 'this is\n      a comment\n      spanning a few lines',
      },
    })
@ -1568,14 +1534,15 @@ const key = 'c'`

    const { body } = parse(code)
    const sketchNonCodeMeta = (body[0] as any).declarations[0].init.nonCodeMeta
-      .nonCodeNodes
-    expect(sketchNonCodeMeta[3]).toEqual({
+      .nonCodeNodes[3][0]
+    expect(sketchNonCodeMeta).toEqual({
      type: 'NonCodeNode',
      start: 125,
-      end: 141,
+      end: 138,
      value: {
        type: 'blockComment',
        value: 'a comment',
+        style: 'line',
      },
    })
  })
@ -1693,11 +1660,7 @@ describe('parsing errors', () => {
    }
    const theError = _theError as any
    expect(theError).toEqual(
-      new KCLError(
-        'unexpected',
-        'Unexpected token Token { token_type: Brace, start: 29, end: 30, value: "}" }',
-        [[29, 30]]
-      )
+      new KCLError('syntax', 'Unexpected token', [[27, 28]])
    )
  })
 })
--- a/src/lang/artifact.test.ts
+++ b/src/lang/artifact.test.ts
@ -7,7 +7,8 @@ describe('testing artifacts', () => {
  // Enable rotations #152
  test('sketch artifacts', async () => {
    const code = `
-const mySketch001 = startSketchAt([0, 0])
+const mySketch001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> lineTo([-1.59, -1.54], %)
  |> lineTo([0.46, -5.82], %)
  // |> rx(45, %)
@ -27,7 +28,7 @@ show(mySketch001)`
          name: '',
          __geoMeta: {
            id: expect.any(String),
-            sourceRange: [21, 42],
+            sourceRange: [46, 71],
          },
        },
        value: [
@ -37,7 +38,7 @@ show(mySketch001)`
            to: [-1.59, -1.54],
            from: [0, 0],
            __geoMeta: {
-              sourceRange: [48, 73],
+              sourceRange: [77, 102],
              id: expect.any(String),
            },
          },
@ -47,7 +48,7 @@ show(mySketch001)`
            from: [-1.59, -1.54],
            name: '',
            __geoMeta: {
-              sourceRange: [79, 103],
+              sourceRange: [108, 132],
              id: expect.any(String),
            },
          },
@ -55,14 +56,16 @@ show(mySketch001)`
        position: [0, 0, 0],
        rotation: [0, 0, 0, 1],
        id: expect.any(String),
-        __meta: [{ sourceRange: [21, 42] }],
+        planeId: expect.any(String),
+        __meta: [{ sourceRange: [46, 71] }],
      },
    ])
  })
  test('extrude artifacts', async () => {
    // Enable rotations #152
    const code = `
-const mySketch001 = startSketchAt([0, 0])
+const mySketch001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> lineTo([-1.59, -1.54], %)
  |> lineTo([0.46, -5.82], %)
  // |> rx(45, %)
@ -82,7 +85,7 @@ show(mySketch001)`
        height: 2,
        position: [0, 0, 0],
        rotation: [0, 0, 0, 1],
-        __meta: [{ sourceRange: [21, 42] }],
+        __meta: [{ sourceRange: [46, 71] }],
      },
    ])
  })
@ -90,7 +93,8 @@ show(mySketch001)`
    // Enable rotations #152
    // TODO #153 in order for getExtrudeWallTransform to work we need to query the engine for the location of a face.
    const code = `
-const sk1 = startSketchAt([0, 0])
+const sk1 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> lineTo([-2.5, 0], %)
  |> lineTo({ to: [0, 10], tag: "p" }, %)
  |> lineTo([2.5, 0], %)
@ -99,7 +103,8 @@ const sk1 = startSketchAt([0, 0])
  // |> ry(5, %)
 const theExtrude = extrude(2, sk1)
 // const theTransf = getExtrudeWallTransform('p', theExtrude)
-const sk2 = startSketchAt([0, 0])
+const sk2 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> lineTo([-2.5, 0], %)
  |> lineTo({ to: [0, 3], tag: "p" }, %)
  |> lineTo([2.5, 0], %)
@ -122,7 +127,7 @@ show(theExtrude, sk2)`
        height: 2,
        position: [0, 0, 0],
        rotation: [0, 0, 0, 1],
-        __meta: [{ sourceRange: [13, 34] }],
+        __meta: [{ sourceRange: [38, 63] }],
      },
      {
        type: 'ExtrudeGroup',
@ -131,7 +136,7 @@ show(theExtrude, sk2)`
        height: 2,
        position: [0, 0, 0],
        rotation: [0, 0, 0, 1],
-        __meta: [{ sourceRange: [302, 323] }],
+        __meta: [{ sourceRange: [356, 381] }],
      },
    ])
  })
--- a/src/lang/errors.ts
+++ b/src/lang/errors.ts
@ -72,7 +72,7 @@ export class KCLUndefinedValueError extends KCLError {
 * Currently the diagnostics are all errors, but in the future they could include lints.
 * */
 export function kclErrToDiagnostic(errors: KCLError[]): Diagnostic[] {
-  return errors.flatMap((err) => {
+  return errors?.flatMap((err) => {
    return err.sourceRanges.map(([from, to]) => {
      return { from, to, message: err.msg, severity: 'error' }
    })
--- a/src/lang/executor.test.ts
+++ b/src/lang/executor.test.ts
@ -41,7 +41,8 @@ const newVar = myVar + 1`
    expect(root.magicNum.value).toBe(69)
  })
  it('sketch declaration', async () => {
-    let code = `const mySketch = startSketchAt([0,0])
+    let code = `const mySketch = startSketchOn('XY')
+  |> startProfileAt([0,0], %)
  |> lineTo({to: [0,2], tag: "myPath"}, %)
  |> lineTo([2,3], %)
  |> lineTo({ to: [5,-1], tag: "rightPath" }, %)
@ -57,7 +58,7 @@ show(mySketch)
        to: [0, 2],
        from: [0, 0],
        __geoMeta: {
-          sourceRange: [43, 80],
+          sourceRange: [72, 109],
          id: expect.any(String),
        },
        name: 'myPath',
@ -68,7 +69,7 @@ show(mySketch)
        from: [0, 2],
        name: '',
        __geoMeta: {
-          sourceRange: [86, 102],
+          sourceRange: [115, 131],
          id: expect.any(String),
        },
      },
@ -77,7 +78,7 @@ show(mySketch)
        to: [5, -1],
        from: [2, 3],
        __geoMeta: {
-          sourceRange: [108, 151],
+          sourceRange: [137, 180],
          id: expect.any(String),
        },
        name: 'rightPath',
@ -87,8 +88,8 @@ show(mySketch)
    expect(_return).toEqual([
      {
        type: 'Identifier',
-        start: 174,
-        end: 182,
+        start: 203,
+        end: 211,
        name: 'mySketch',
      },
    ])
@ -132,7 +133,8 @@ show(mySketch)
  it('execute pipe sketch into call expression', async () => {
    // Enable rotations #152
    const code = [
-      'const mySk1 = startSketchAt([0,0])',
+      "const mySk1 = startSketchOn('XY')",
+      '  |> startProfileAt([0,0], %)',
      '  |> lineTo([1,1], %)',
      '  |> lineTo({to: [0, 1], tag: "myPath"}, %)',
      '  |> lineTo([1,1], %)',
@ -147,7 +149,7 @@ show(mySketch)
        name: '',
        __geoMeta: {
          id: expect.any(String),
-          sourceRange: [14, 34],
+          sourceRange: [39, 63],
        },
      },
      value: [
@ -157,7 +159,7 @@ show(mySketch)
          from: [0, 0],
          name: '',
          __geoMeta: {
-            sourceRange: [40, 56],
+            sourceRange: [69, 85],
            id: expect.any(String),
          },
        },
@ -166,7 +168,7 @@ show(mySketch)
          to: [0, 1],
          from: [1, 1],
          __geoMeta: {
-            sourceRange: [62, 100],
+            sourceRange: [91, 129],
            id: expect.any(String),
          },
          name: 'myPath',
@ -177,7 +179,7 @@ show(mySketch)
          from: [0, 1],
          name: '',
          __geoMeta: {
-            sourceRange: [106, 122],
+            sourceRange: [135, 151],
            id: expect.any(String),
          },
        },
@ -185,7 +187,8 @@ show(mySketch)
      position: [0, 0, 0],
      rotation: [0, 0, 0, 1],
      id: expect.any(String),
-      __meta: [{ sourceRange: [14, 34] }],
+      planeId: expect.any(String),
+      __meta: [{ sourceRange: [39, 63] }],
    })
  })
  it('execute array expression', async () => {
@ -329,7 +332,8 @@ describe('testing math operators', () => {
  })
  it('with unaryExpression in ArrayExpression in CallExpression, checking nothing funny happens when used in a sketch', async () => {
    const code = [
-      'const part001 = startSketchAt([0, 0])',
+      "const part001 = startSketchOn('XY')",
+      '  |> startProfileAt([0, 0], %)',
      '|> line([-2.21, -legLen(5, min(3, 999))], %)',
    ].join('\n')
    const { root } = await exe(code)
@ -341,7 +345,8 @@ describe('testing math operators', () => {
  it('test that % substitution feeds down CallExp->ArrExp->UnaryExp->CallExp', async () => {
    const code = [
      `const myVar = 3`,
-      `const part001 = startSketchAt([0, 0])`,
+      `const part001 = startSketchOn('XY')`,
+      `  |> startProfileAt([0, 0], %)`,
      `  |> line({ to: [3, 4], tag: 'seg01' }, %)`,
      `  |> line([`,
      `  min(segLen('seg01', %), myVar),`,
@ -377,7 +382,8 @@ describe('testing math operators', () => {
 describe('Testing Errors', () => {
  it('should throw an error when a variable is not defined', async () => {
    const code = `const myVar = 5
-const theExtrude = startSketchAt([0, 0])
+const theExtrude = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> line([-2.4, 5], %)
  |> line([-0.76], myVarZ, %)
  |> line([5,5], %)
@ -388,7 +394,7 @@ show(theExtrude)`
      new KCLError(
        'undefined_value',
        'memory item key `myVarZ` is not defined',
-        [[100, 106]]
+        [[129, 135]]
      )
    )
  })
--- a/src/lang/modifyAst.test.ts
+++ b/src/lang/modifyAst.test.ts
@ -104,13 +104,13 @@ describe('Testing addSketchTo', () => {
        body: [],
        start: 0,
        end: 0,
-        nonCodeMeta: { nonCodeNodes: {}, start: null },
+        nonCodeMeta: { nonCodeNodes: {}, start: [] },
      },
      'yz'
    )
    const str = recast(result.modifiedAst)
-    expect(str).toBe(`const part001 = startSketchAt('default')
-  |> ry(90, %)
+    expect(str).toBe(`const part001 = startSketchOn('YZ')
+  |> startProfileAt('default', %)
  |> line('default', %)
 show(part001)
 `)
@ -133,7 +133,8 @@ function giveSketchFnCallTagTestHelper(
 }

 describe('Testing giveSketchFnCallTag', () => {
-  const code = `const part001 = startSketchAt([0, 0])
+  const code = `const part001 = startSketchOn('XY')
+|> startProfileAt([0, 0], %)
 |> line([-2.57, -0.13], %)
 |> line([0, 0.83], %)
 |> line([0.82, 0.34], %)
@ -185,7 +186,8 @@ fn ghi = (x) => {
 const abc = 3
 const identifierGuy = 5
 const yo = 5 + 6
-const part001 = startSketchAt([-1.2, 4.83])
+const part001 = startSketchOn('XY')
+|> startProfileAt([-1.2, 4.83], %)
 |> line([2.8, 0], %)
 |> angledLine([100 + 100, 3.09], %)
 |> angledLine([abc, 3.09], %)
--- a/src/lang/modifyAst.ts
+++ b/src/lang/modifyAst.ts
@ -1,4 +1,5 @@
-import { Selection, ToolTip } from '../useStore'
+import { ToolTip } from '../useStore'
+import { Selection } from 'lib/selections'
 import {
  Program,
  CallExpression,
@ -32,21 +33,26 @@ import { isLiteralArrayOrStatic } from './std/sketchcombos'

 export function addStartSketch(
  node: Program,
+  axis: 'xy' | 'xz' | 'yz' | '-xy' | '-xz' | '-yz',
  start: [number, number],
  end: [number, number]
 ): { modifiedAst: Program; id: string; pathToNode: PathToNode } {
  const _node = { ...node }
  const _name = findUniqueName(node, 'part')

-  const startSketchAt = createCallExpression('startSketchAt', [
+  const startSketchOn = createCallExpressionStdLib('startSketchOn', [
+    createLiteral(axis.toUpperCase()),
+  ])
+  const startProfileAt = createCallExpressionStdLib('startProfileAt', [
    createArrayExpression([createLiteral(start[0]), createLiteral(start[1])]),
+    createPipeSubstitution(),
  ])
  const initialLineTo = createCallExpression('line', [
    createArrayExpression([createLiteral(end[0]), createLiteral(end[1])]),
    createPipeSubstitution(),
  ])

-  const pipeBody = [startSketchAt, initialLineTo]
+  const pipeBody = [startSketchOn, startProfileAt, initialLineTo]

  const variableDeclaration = createVariableDeclaration(
    _name,
@ -79,11 +85,11 @@ export function addSketchTo(
  const _node = { ...node }
  const _name = name || findUniqueName(node, 'part')

-  const startSketchAt = createCallExpressionStdLib('startSketchAt', [
-    createLiteral('default'),
+  const startSketchOn = createCallExpressionStdLib('startSketchOn', [
+    createLiteral(axis.toUpperCase()),
  ])
-  const rotate = createCallExpression(axis === 'xz' ? 'rx' : 'ry', [
-    createLiteral(90),
+  const startProfileAt = createCallExpressionStdLib('startProfileAt', [
+    createLiteral('default'),
    createPipeSubstitution(),
  ])
  const initialLineTo = createCallExpressionStdLib('line', [
@ -91,10 +97,7 @@ export function addSketchTo(
    createPipeSubstitution(),
  ])

-  const pipeBody =
-    axis !== 'xy'
-      ? [startSketchAt, rotate, initialLineTo]
-      : [startSketchAt, initialLineTo]
+  const pipeBody = [startSketchOn, startProfileAt, initialLineTo]

  const variableDeclaration = createVariableDeclaration(
    _name,
@ -538,7 +541,7 @@ export function createPipeExpression(
    start: 0,
    end: 0,
    body,
-    nonCodeMeta: { nonCodeNodes: {}, start: null },
+    nonCodeMeta: { nonCodeNodes: {}, start: [] },
  }
 }

--- a/src/lang/queryAst.test.ts
+++ b/src/lang/queryAst.test.ts
@ -4,6 +4,8 @@ import {
  isNodeSafeToReplace,
  isTypeInValue,
  getNodePathFromSourceRange,
+  doesPipeHaveCallExp,
+  hasExtrudeSketchGroup,
 } from './queryAst'
 import { enginelessExecutor } from '../lib/testHelpers'
 import {
@ -26,7 +28,8 @@ const halfArmAngle = armAngle / 2
 const arrExpShouldNotBeIncluded = [1, 2, 3]
 const objExpShouldNotBeIncluded = { a: 1, b: 2, c: 3 }

-const part001 = startSketchAt([0, 0])
+const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> yLineTo(1, %)
  |> xLine(3.84, %) // selection-range-7ish-before-this

@ -57,7 +60,8 @@ show(part001)`
 })

 describe('testing argIsNotIdentifier', () => {
-  const code = `const part001 = startSketchAt([-1.2, 4.83])
+  const code = `const part001 = startSketchOn('XY')
+|> startProfileAt([-1.2, 4.83], %)
 |> line([2.8, 0], %)
 |> angledLine([100 + 100, 3.09], %)
 |> angledLine([abc, 3.09], %)
@ -194,7 +198,8 @@ show(part001)`
 })

 describe('testing getNodePathFromSourceRange', () => {
-  const code = `const part001 = startSketchAt([0.39, -0.05])
+  const code = `const part001 = startSketchOn('XY')
+  |> startProfileAt([0.39, -0.05], %)
  |> line([0.94, 2.61], %)
  |> line([-0.21, -1.4], %)
 show(part001)`
@ -210,7 +215,7 @@ show(part001)`
      [0, 'index'],
      ['init', ''],
      ['body', 'PipeExpression'],
-      [1, 'index'],
+      [2, 'index'],
    ])
  })
  it('finds the last line when cursor is put at the end', () => {
@ -225,7 +230,7 @@ show(part001)`
      [0, 'index'],
      ['init', ''],
      ['body', 'PipeExpression'],
-      [2, 'index'],
+      [3, 'index'],
    ]
    expect(result).toEqual(expected)
    // expect similar result for start of line
@ -243,3 +248,114 @@ show(part001)`
    expect(selectWholeThing).toEqual(expected)
  })
 })
+
+describe('testing doesPipeHave', () => {
+  it('finds close', () => {
+    const exampleCode = `const length001 = 2
+const part001 = startSketchAt([-1.41, 3.46])
+  |> line({ to: [19.49, 1.16], tag: 'seg01' }, %)
+  |> angledLine([-35, length001], %)
+  |> line([-3.22, -7.36], %)
+  |> angledLine([-175, segLen('seg01', %)], %)
+  |> close(%)
+`
+    const ast = parse(exampleCode)
+    const result = doesPipeHaveCallExp({
+      calleeName: 'close',
+      ast,
+      selection: { type: 'default', range: [100, 101] },
+    })
+    expect(result).toEqual(true)
+  })
+  it('finds extrude', () => {
+    const exampleCode = `const length001 = 2
+const part001 = startSketchAt([-1.41, 3.46])
+  |> line({ to: [19.49, 1.16], tag: 'seg01' }, %)
+  |> angledLine([-35, length001], %)
+  |> line([-3.22, -7.36], %)
+  |> angledLine([-175, segLen('seg01', %)], %)
+  |> close(%)
+  |> extrude(1, %)
+`
+    const ast = parse(exampleCode)
+    const result = doesPipeHaveCallExp({
+      calleeName: 'extrude',
+      ast,
+      selection: { type: 'default', range: [100, 101] },
+    })
+    expect(result).toEqual(true)
+  })
+  it('does NOT find close', () => {
+    const exampleCode = `const length001 = 2
+const part001 = startSketchAt([-1.41, 3.46])
+  |> line({ to: [19.49, 1.16], tag: 'seg01' }, %)
+  |> angledLine([-35, length001], %)
+  |> line([-3.22, -7.36], %)
+  |> angledLine([-175, segLen('seg01', %)], %)
+`
+    const ast = parse(exampleCode)
+    const result = doesPipeHaveCallExp({
+      calleeName: 'close',
+      ast,
+      selection: { type: 'default', range: [100, 101] },
+    })
+    expect(result).toEqual(false)
+  })
+  it('returns false if not a pipe', () => {
+    const exampleCode = `const length001 = 2`
+    const ast = parse(exampleCode)
+    const result = doesPipeHaveCallExp({
+      calleeName: 'close',
+      ast,
+      selection: { type: 'default', range: [9, 10] },
+    })
+    expect(result).toEqual(false)
+  })
+})
+
+describe('testing hasExtrudeSketchGroup', () => {
+  it('find sketch group', async () => {
+    const exampleCode = `const length001 = 2
+const part001 = startSketchAt([-1.41, 3.46])
+  |> line({ to: [19.49, 1.16], tag: 'seg01' }, %)
+  |> angledLine([-35, length001], %)
+  |> line([-3.22, -7.36], %)
+  |> angledLine([-175, segLen('seg01', %)], %)`
+    const ast = parse(exampleCode)
+    const programMemory = await enginelessExecutor(ast)
+    const result = hasExtrudeSketchGroup({
+      ast,
+      selection: { type: 'default', range: [100, 101] },
+      programMemory,
+    })
+    expect(result).toEqual(true)
+  })
+  it('find extrude group', async () => {
+    const exampleCode = `const length001 = 2
+const part001 = startSketchAt([-1.41, 3.46])
+  |> line({ to: [19.49, 1.16], tag: 'seg01' }, %)
+  |> angledLine([-35, length001], %)
+  |> line([-3.22, -7.36], %)
+  |> angledLine([-175, segLen('seg01', %)], %)
+  |> extrude(1, %)`
+    const ast = parse(exampleCode)
+    const programMemory = await enginelessExecutor(ast)
+    const result = hasExtrudeSketchGroup({
+      ast,
+      selection: { type: 'default', range: [100, 101] },
+      programMemory,
+    })
+    expect(result).toEqual(true)
+  })
+  it('finds nothing', async () => {
+    const exampleCode = `const length001 = 2`
+    const ast = parse(exampleCode)
+    const programMemory = await enginelessExecutor(ast)
+    const result = hasExtrudeSketchGroup({
+      ast,
+      selection: { type: 'default', range: [10, 11] },
+      programMemory,
+    })
+    expect(result).toEqual(false)
+  })
+})
--- a/src/lang/queryAst.ts
+++ b/src/lang/queryAst.ts
@ -1,4 +1,5 @@
-import { Selection, ToolTip } from '../useStore'
+import { ToolTip } from '../useStore'
+import { Selection } from 'lib/selections'
 import {
  BinaryExpression,
  Program,
@ -13,6 +14,7 @@ import {
  ProgramMemory,
  SketchGroup,
  SourceRange,
+  PipeExpression,
 } from './wasm'
 import { createIdentifier, splitPathAtLastIndex } from './modifyAst'
 import { getSketchSegmentFromSourceRange } from './std/sketchConstraints'
@ -511,3 +513,47 @@ export function isLinesParallelAndConstrained(
    }
  }
 }
+
+export function doesPipeHaveCallExp({
+  ast,
+  selection,
+  calleeName,
+}: {
+  calleeName: string
+  ast: Program
+  selection: Selection
+}): boolean {
+  const pathToNode = getNodePathFromSourceRange(ast, selection.range)
+  const pipeExpression = getNodeFromPath<PipeExpression>(
+    ast,
+    pathToNode,
+    'PipeExpression'
+  ).node
+  if (pipeExpression.type !== 'PipeExpression') return false
+  return pipeExpression.body.some(
+    (expression) =>
+      expression.type === 'CallExpression' &&
+      expression.callee.name === calleeName
+  )
+}
+
+export function hasExtrudeSketchGroup({
+  ast,
+  selection,
+  programMemory,
+}: {
+  ast: Program
+  selection: Selection
+  programMemory: ProgramMemory
+}): boolean {
+  const pathToNode = getNodePathFromSourceRange(ast, selection.range)
+  const varDec = getNodeFromPath<VariableDeclaration>(
+    ast,
+    pathToNode,
+    'VariableDeclaration'
+  ).node
+  if (varDec.type !== 'VariableDeclaration') return false
+  const varName = varDec.declarations[0].id.name
+  const varValue = programMemory?.root[varName]
+  return varValue?.type === 'ExtrudeGroup' || varValue?.type === 'SketchGroup'
+}
--- a/src/lang/recast.test.ts
+++ b/src/lang/recast.test.ts
@ -272,21 +272,20 @@ const mySk1 = startSketchAt([0, 0])
 `
    const { ast } = code2ast(code)
    const recasted = recast(ast)
-    expect(recasted).toBe(`// comment at start
+    expect(recasted).toBe(`/* comment at start */
+
 const mySk1 = startSketchAt([0, 0])
  |> lineTo([1, 1], %)
  // comment here
  |> lineTo({ to: [0, 1], tag: 'myTag' }, %)
-  |> lineTo([1, 1], %)
-  /* and
-  here
-
-a comment between pipe expression statements */
+  |> lineTo([1, 1], %) /* and
+  here */
+  // a comment between pipe expression statements
  |> rx(90, %)
  // and another with just white space between others below
  |> ry(45, %)
  |> rx(45, %)
-// one more for good measure
+  /* one more for good measure */
 `)
  })
 })
--- a/src/lang/std/engineConnection.ts
+++ b/src/lang/std/engineConnection.ts
@ -1,16 +1,10 @@
-import {
-  ProgramMemory,
-  SourceRange,
-  Program,
-  VariableDeclarator,
-} from 'lang/wasm'
-import { Selections } from 'useStore'
+import { SourceRange } from 'lang/wasm'
 import { VITE_KC_API_WS_MODELING_URL, VITE_KC_CONNECTION_TIMEOUT_MS } from 'env'
 import { Models } from '@kittycad/lib'
 import { exportSave } from 'lib/exportSave'
 import { v4 as uuidv4 } from 'uuid'
 import * as Sentry from '@sentry/react'
-import { getNodeFromPath, getNodePathFromSourceRange } from 'lang/queryAst'
+import { DefaultPlanes } from 'wasm-lib/kcl/bindings/DefaultPlanes'

 let lastMessage = ''

@ -26,6 +20,7 @@ interface ResultCommand extends CommandInfo {
  type: 'result'
  data: any
  raw: WebSocketResponse
+  headVertexId?: string
 }
 interface FailedCommand extends CommandInfo {
  type: 'failed'
@ -40,9 +35,6 @@ interface PendingCommand extends CommandInfo {
 export interface ArtifactMap {
  [key: string]: ResultCommand | PendingCommand | FailedCommand
 }
-export interface SourceRangeMap {
-  [key: string]: SourceRange
-}

 interface NewTrackArgs {
  conn: EngineConnection
@ -286,14 +278,18 @@ export class EngineConnection {
      const message: Models['WebSocketResponse_type'] = JSON.parse(event.data)

      if (!message.success) {
+        const errorsString = message?.errors
+          ?.map((error) => {
+            return `  - ${error.error_code}: ${error.message}`
+          })
+          .join('\n')
        if (message.request_id) {
-          console.error(`Error in response to request ${message.request_id}:`)
+          console.error(
+            `Error in response to request ${message.request_id}:\n${errorsString}`
+          )
        } else {
-          console.error(`Error from server:`)
+          console.error(`Error from server:\n${errorsString}`)
        }
-        message?.errors?.forEach((error) => {
-          console.error(` - ${error.error_code}: ${error.message}`)
-        })
        return
      }

@ -454,18 +450,18 @@ export class EngineConnection {
            videoTrackStats.forEach((videoTrackReport) => {
              if (videoTrackReport.type === 'inbound-rtp') {
                client_metrics.rtc_frames_decoded =
-                  videoTrackReport.framesDecoded
+                  videoTrackReport.framesDecoded || 0
                client_metrics.rtc_frames_dropped =
-                  videoTrackReport.framesDropped
+                  videoTrackReport.framesDropped || 0
                client_metrics.rtc_frames_received =
-                  videoTrackReport.framesReceived
+                  videoTrackReport.framesReceived || 0
                client_metrics.rtc_frames_per_second =
                  videoTrackReport.framesPerSecond || 0
                client_metrics.rtc_freeze_count =
                  videoTrackReport.freezeCount || 0
-                client_metrics.rtc_jitter_sec = videoTrackReport.jitter
+                client_metrics.rtc_jitter_sec = videoTrackReport.jitter || 0.0
                client_metrics.rtc_keyframes_decoded =
-                  videoTrackReport.keyFramesDecoded
+                  videoTrackReport.keyFramesDecoded || 0
                client_metrics.rtc_total_freezes_duration_sec =
                  videoTrackReport.totalFreezesDuration || 0
              } else if (videoTrackReport.type === 'transport') {
@ -589,15 +585,17 @@ interface Subscription<T extends ModelTypes> {

 export class EngineCommandManager {
  artifactMap: ArtifactMap = {}
-  sourceRangeMap: SourceRangeMap = {}
  outSequence = 1
  inSequence = 1
  engineConnection?: EngineConnection
+  defaultPlanes: DefaultPlanes = { xy: '', yz: '', xz: '' }
  // Folks should realize that wait for ready does not get called _everytime_
  // the connection resets and restarts, it only gets called the first time.
  // Be careful what you put here.
-  waitForReady: Promise<void> = new Promise(() => {})
  private resolveReady = () => {}
+  waitForReady: Promise<void> = new Promise((resolve) => {
+    this.resolveReady = resolve
+  })

  subscriptions: {
    [event: string]: {
@ -639,9 +637,6 @@ export class EngineCommandManager {
      return
    }

-    this.waitForReady = new Promise((resolve) => {
-      this.resolveReady = resolve
-    })
    const url = `${VITE_KC_API_WS_MODELING_URL}?video_res_width=${width}&video_res_height=${height}`
    this.engineConnection = new EngineConnection({
      url,
@ -669,12 +664,15 @@ export class EngineCommandManager {
          },
        })

-        // We execute the code here to make sure if the stream was to
-        // restart in a session, we want to make sure to execute the code.
-        // We force it to re-execute the code because we want to make sure
-        // the code is executed everytime the stream is restarted.
-        // We pass undefined for the code so it reads from the current state.
-        executeCode(undefined, true)
+        // Inisialize the planes.
+        this.initPlanes().then(() => {
+          // We execute the code here to make sure if the stream was to
+          // restart in a session, we want to make sure to execute the code.
+          // We force it to re-execute the code because we want to make sure
+          // the code is executed everytime the stream is restarted.
+          // We pass undefined for the code so it reads from the current state.
+          executeCode(undefined, true)
+        })
      },
      onClose: () => {
        setIsStreamReady(false)
@ -725,7 +723,11 @@ export class EngineCommandManager {
              message.request_id
            ) {
              this.handleModelingCommand(message.resp, message.request_id)
-            } else if (!message.success && message.request_id) {
+            } else if (
+              !message.success &&
+              message.request_id &&
+              this.artifactMap[message.request_id]
+            ) {
              this.handleFailedModelingCommand(message)
            }
          }
@ -753,7 +755,6 @@ export class EngineCommandManager {
    streamWidth: number
    streamHeight: number
  }) {
-    console.log('handleResize', streamWidth, streamHeight)
    if (!this.engineConnection?.isReady()) {
      return
    }
@ -844,7 +845,6 @@ export class EngineCommandManager {
  }
  startNewSession() {
    this.artifactMap = {}
-    this.sourceRangeMap = {}
  }
  subscribeTo<T extends ModelTypes>({
    event,
@ -910,30 +910,6 @@ export class EngineCommandManager {
      this.engineConnection?.send(deletCmd)
    })
  }
-  cusorsSelected(selections: {
-    otherSelections: Selections['otherSelections']
-    idBasedSelections: { type: string; id: string }[]
-  }) {
-    if (!this.engineConnection?.isReady()) {
-      console.log('engine connection isnt ready')
-      return
-    }
-    this.sendSceneCommand({
-      type: 'modeling_cmd_req',
-      cmd: {
-        type: 'select_clear',
-      },
-      cmd_id: uuidv4(),
-    })
-    this.sendSceneCommand({
-      type: 'modeling_cmd_req',
-      cmd: {
-        type: 'select_add',
-        entities: selections.idBasedSelections.map((s) => s.id),
-      },
-      cmd_id: uuidv4(),
-    })
-  }
  sendSceneCommand(command: EngineCommand): Promise<any> {
    if (this.engineConnection === undefined) {
      return Promise.resolve()
@ -994,7 +970,6 @@ export class EngineCommandManager {
    if (this.engineConnection === undefined) {
      return Promise.resolve()
    }
-    this.sourceRangeMap[id] = range

    if (!this.engineConnection?.isReady()) {
      return Promise.resolve()
@ -1070,109 +1045,115 @@ export class EngineCommandManager {
    }
    return command.promise
  }
-  async waitForAllCommands(
-    ast?: Program,
-    programMemory?: ProgramMemory
-  ): Promise<{
+  async waitForAllCommands(): Promise<{
    artifactMap: ArtifactMap
-    sourceRangeMap: SourceRangeMap
  }> {
    const pendingCommands = Object.values(this.artifactMap).filter(
      ({ type }) => type === 'pending'
    ) as PendingCommand[]
    const proms = pendingCommands.map(({ promise }) => promise)
    await Promise.all(proms)
-    if (ast && programMemory) {
-      await this.fixIdMappings(ast, programMemory)
-    }

    return {
      artifactMap: this.artifactMap,
-      sourceRangeMap: this.sourceRangeMap,
    }
  }
-  private async fixIdMappings(ast: Program, programMemory: ProgramMemory) {
-    if (this.engineConnection === undefined) {
-      return
-    }
-    /* This is a temporary solution since the cmd_ids that are sent through when
-    sending 'extend_path' ids are not used as the segment ids.
+  private async initPlanes() {
+    const [xy, yz, xz] = [
+      await this.createPlane({
+        x_axis: { x: 1, y: 0, z: 0 },
+        y_axis: { x: 0, y: 1, z: 0 },
+        color: { r: 0.7, g: 0.28, b: 0.28, a: 0.4 },
+      }),
+      await this.createPlane({
+        x_axis: { x: 0, y: 1, z: 0 },
+        y_axis: { x: 0, y: 0, z: 1 },
+        color: { r: 0.28, g: 0.7, b: 0.28, a: 0.4 },
+      }),
+      await this.createPlane({
+        x_axis: { x: 1, y: 0, z: 0 },
+        y_axis: { x: 0, y: 0, z: 1 },
+        color: { r: 0.28, g: 0.28, b: 0.7, a: 0.4 },
+      }),
+    ]
+    this.defaultPlanes = { xy, yz, xz }

-    We have a way to back fill them with 'path_get_info', however this relies on one
-    the sketchGroup array and the segements array returned from the server to be in
-    the same length and order. plus it's super hacky, we first use the path_id to get
-    the source range of the pipe expression then use the name of the variable to get
-    the sketchGroup from programMemory.
-
-    I feel queezy about relying on all these steps to always line up.
-    We have also had to pollute this EngineCommandManager class with knowledge of both the ast and programMemory
-    We should get the cmd_ids to match with the segment ids and delete this method.
-    */
-    const pathInfoProms = []
-    for (const [id, artifact] of Object.entries(this.artifactMap)) {
-      if (artifact.commandType === 'start_path') {
-        pathInfoProms.push(
-          this.sendSceneCommand({
-            type: 'modeling_cmd_req',
-            cmd_id: uuidv4(),
-            cmd: {
-              type: 'path_get_info',
-              path_id: id,
-            },
-          }).then(({ data }) => ({
-            originalId: id,
-            segments: data?.data?.segments,
-          }))
+    this.subscribeTo({
+      event: 'select_with_point',
+      callback: ({ data }) => {
+        if (!data?.entity_id) return
+        if (
+          ![
+            this.defaultPlanes.xy,
+            this.defaultPlanes.yz,
+            this.defaultPlanes.xz,
+          ].includes(data.entity_id)
        )
-      }
-    }
-
-    const pathInfos = await Promise.all(pathInfoProms)
-    pathInfos.forEach(({ originalId, segments }) => {
-      const originalArtifact = this.artifactMap[originalId]
-      if (!originalArtifact || originalArtifact.type === 'pending') {
-        return
-      }
-      const pipeExpPath = getNodePathFromSourceRange(
-        ast,
-        originalArtifact.range
-      )
-      const pipeExp = getNodeFromPath<VariableDeclarator>(
-        ast,
-        pipeExpPath,
-        'VariableDeclarator'
-      ).node
-      if (pipeExp.type !== 'VariableDeclarator') {
-        return
-      }
-      const variableName = pipeExp.id.name
-      const memoryItem = programMemory.root[variableName]
-      if (!memoryItem) {
-        return
-      } else if (memoryItem.type !== 'SketchGroup') {
-        return
-      }
-
-      const relevantSegments = segments.filter(
-        ({ command_id }: { command_id: string | null }) => command_id
-      )
-      if (memoryItem.value.length !== relevantSegments.length) {
-        return
-      }
-      for (let i = 0; i < relevantSegments.length; i++) {
-        const engineSegment = relevantSegments[i]
-        const memorySegment = memoryItem.value[i]
-        const oldId = memorySegment.__geoMeta.id
-        const artifact = this.artifactMap[oldId]
-        delete this.artifactMap[oldId]
-        delete this.sourceRangeMap[oldId]
-        if (artifact) {
-          this.artifactMap[engineSegment.command_id] = artifact
-          this.sourceRangeMap[engineSegment.command_id] = artifact.range
-        }
-      }
+          return
+        this.onPlaneSelectCallback(data.entity_id)
+      },
    })
  }
+  planesInitialized(): boolean {
+    return (
+      this.defaultPlanes.xy !== '' &&
+      this.defaultPlanes.yz !== '' &&
+      this.defaultPlanes.xz !== ''
+    )
+  }
+
+  onPlaneSelectCallback = (id: string) => {}
+  onPlaneSelected(callback: (id: string) => void) {
+    this.onPlaneSelectCallback = callback
+  }
+
+  async setPlaneHidden(id: string, hidden: boolean): Promise<string> {
+    return await this.sendSceneCommand({
+      type: 'modeling_cmd_req',
+      cmd_id: uuidv4(),
+      cmd: {
+        type: 'object_visible',
+        object_id: id,
+        hidden: hidden,
+      },
+    })
+  }
+
+  private async createPlane({
+    x_axis,
+    y_axis,
+    color,
+  }: {
+    x_axis: Models['Point3d_type']
+    y_axis: Models['Point3d_type']
+    color: Models['Color_type']
+  }): Promise<string> {
+    const planeId = uuidv4()
+    await this.sendSceneCommand({
+      type: 'modeling_cmd_req',
+      cmd: {
+        type: 'make_plane',
+        size: 60,
+        origin: { x: 0, y: 0, z: 0 },
+        x_axis,
+        y_axis,
+        clobber: false,
+        hide: true,
+      },
+      cmd_id: planeId,
+    })
+    await this.sendSceneCommand({
+      type: 'modeling_cmd_req',
+      cmd: {
+        type: 'plane_set_color',
+        plane_id: planeId,
+        color,
+      },
+      cmd_id: uuidv4(),
+    })
+    await this.setPlaneHidden(planeId, true)
+    return planeId
+  }
 }

 export const engineCommandManager = new EngineCommandManager()
--- a/src/lang/std/sketch.test.ts
+++ b/src/lang/std/sketch.test.ts
@ -96,10 +96,11 @@ describe('testing changeSketchArguments', () => {
  const lineAfterChange = 'lineTo([2, 3], %)'
  test('changeSketchArguments', async () => {
    // Enable rotations #152
-    const genCode = (line: string) => `const mySketch001 = startSketchAt([0, 0])
+    const genCode = (line: string) => `const mySketch001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> ${line}
  |> lineTo([0.46, -5.82], %)
-// |> rx(45, %)
+  // |> rx(45, %)
 show(mySketch001)
 `
    const code = genCode(lineToChange)
@ -112,20 +113,6 @@ show(mySketch001)
      programMemory,
      [sourceStart, sourceStart + lineToChange.length],
      [2, 3],
-      {
-        mode: 'sketch',
-        sketchMode: 'sketchEdit',
-        pathId: '',
-        rotation: [0, 0, 0, 1],
-        position: [0, 0, 0],
-        pathToNode: [
-          ['body', ''],
-          [0, 'index'],
-          ['declarations', 'VariableDeclaration'],
-          [0, 'index'],
-          ['init', 'VariableDeclarator'],
-        ],
-      },
      [0, 0]
    )
    expect(recast(modifiedAst)).toBe(expectedCode)
@ -137,7 +124,8 @@ describe('testing addNewSketchLn', () => {
  test('addNewSketchLn', async () => {
    // Enable rotations #152
    const code = `
-const mySketch001 = startSketchAt([0, 0])
+const mySketch001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  // |> rx(45, %)
  |> lineTo([-1.59, -1.54], %)
  |> lineTo([0.46, -5.82], %)
@ -145,11 +133,12 @@ show(mySketch001)`
    const ast = parse(code)
    const programMemory = await enginelessExecutor(ast)
    const sourceStart = code.indexOf(lineToChange)
-    expect(sourceStart).toBe(66)
+    expect(sourceStart).toBe(95)
    let { modifiedAst } = addNewSketchLn({
      node: ast,
      programMemory,
      to: [2, 3],
+      from: [0, 0],
      fnName: 'lineTo',
      pathToNode: [
        ['body', ''],
@ -160,7 +149,8 @@ show(mySketch001)`
      ],
    })
    // Enable rotations #152
-    let expectedCode = `const mySketch001 = startSketchAt([0, 0])
+    let expectedCode = `const mySketch001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  // |> rx(45, %)
  |> lineTo([-1.59, -1.54], %)
  |> lineTo([0.46, -5.82], %)
@ -181,7 +171,8 @@ show(mySketch001)
      ],
    })

-    expectedCode = `const mySketch001 = startSketchAt([0, 0])
+    expectedCode = `const mySketch001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  // |> rx(45, %)
  |> lineTo([-1.59, -1.54], %)
  |> lineTo([0.46, -5.82], %)
@ -196,7 +187,8 @@ describe('testing addTagForSketchOnFace', () => {
  it('needs to be in it', async () => {
    const originalLine = 'lineTo([-1.59, -1.54], %)'
    // Enable rotations #152
-    const genCode = (line: string) => `const mySketch001 = startSketchAt([0, 0])
+    const genCode = (line: string) => `const mySketch001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  // |> rx(45, %)
  |> ${line}
  |> lineTo([0.46, -5.82], %)
--- a/src/lang/std/sketch.ts
+++ b/src/lang/std/sketch.ts
@ -18,7 +18,7 @@ import {
  getNodePathFromSourceRange,
 } from '../queryAst'
 import { isLiteralArrayOrStatic } from './sketchcombos'
-import { GuiModes, toolTips, ToolTip } from '../../useStore'
+import { toolTips, ToolTip } from '../../useStore'
 import { createPipeExpression, splitPathAtPipeExpression } from '../modifyAst'
 import { generateUuidFromHashSeed } from '../../lib/uuid'

@ -193,9 +193,6 @@ export const line: SketchLineHelper = {
      pathToNode,
      'VariableDeclarator'
    )
-    const variableName = varDec.id.name
-    const sketch = previousProgramMemory?.root?.[variableName]
-    if (sketch.type !== 'SketchGroup') throw new Error('not a SketchGroup')

    const newXVal = createLiteral(roundOff(to[0] - from[0], 2))
    const newYVal = createLiteral(roundOff(to[1] - from[1], 2))
@ -209,7 +206,11 @@ export const line: SketchLineHelper = {
      pipe.body[callIndex] = callExp
      return {
        modifiedAst: _node,
-        pathToNode,
+        pathToNode: [
+          ...pathToNode,
+          ['body', 'PipeExpression'],
+          [callIndex, 'CallExpression'],
+        ],
        valueUsedInTransform,
      }
    }
@ -220,6 +221,14 @@ export const line: SketchLineHelper = {
    ])
    if (pipe.type === 'PipeExpression') {
      pipe.body = [...pipe.body, callExp]
+      return {
+        modifiedAst: _node,
+        pathToNode: [
+          ...pathToNode,
+          ['body', 'PipeExpression'],
+          [pipe.body.length - 1, 'CallExpression'],
+        ],
+      }
    } else {
      varDec.init = createPipeExpression([varDec.init, callExp])
    }
@ -908,16 +917,14 @@ export function changeSketchArguments(
  programMemory: ProgramMemory,
  sourceRange: SourceRange,
  args: [number, number],
-  guiMode: GuiModes,
  from: [number, number]
-): { modifiedAst: Program } {
+): { modifiedAst: Program; pathToNode: PathToNode } {
  const _node = { ...node }
  const thePath = getNodePathFromSourceRange(_node, sourceRange)
  const { node: callExpression, shallowPath } = getNodeFromPath<CallExpression>(
    _node,
    thePath
  )
-  if (guiMode.mode !== 'sketch') throw new Error('not in sketch mode')

  if (callExpression?.callee?.name in sketchLineHelperMap) {
    const { updateArgs } = sketchLineHelperMap[callExpression.callee.name]
@ -931,7 +938,7 @@ export function changeSketchArguments(
    })
  }

-  throw new Error('not a sketch line helper')
+  throw new Error(`not a sketch line helper: ${callExpression?.callee?.name}`)
 }

 interface CreateLineFnCallArgs {
@ -959,8 +966,10 @@ export function addNewSketchLn({
  to,
  fnName,
  pathToNode,
-}: Omit<CreateLineFnCallArgs, 'from'>): {
+  from,
+}: CreateLineFnCallArgs): {
  modifiedAst: Program
+  pathToNode: PathToNode
 } {
  const node = JSON.parse(JSON.stringify(_node))
  const { add, updateArgs } = sketchLineHelperMap?.[fnName] || {}
@ -973,12 +982,6 @@ export function addNewSketchLn({
  const { node: pipeExp, shallowPath: pipePath } = getNodeFromPath<
    PipeExpression | CallExpression
  >(node, pathToNode, 'PipeExpression')
-  const variableName = varDec.id.name
-  const sketch = previousProgramMemory?.root?.[variableName]
-  if (sketch.type !== 'SketchGroup') throw new Error('not a SketchGroup')
-
-  const last = sketch.value[sketch.value.length - 1] || sketch.start
-  const from = last.to
  return add({
    node,
    previousProgramMemory,
--- a/src/lang/std/sketchConstraints.test.ts
+++ b/src/lang/std/sketchConstraints.test.ts
@ -5,7 +5,7 @@ import {
  transformAstSketchLines,
 } from './sketchcombos'
 import { getSketchSegmentFromSourceRange } from './sketchConstraints'
-import { Selection } from '../../useStore'
+import { Selection } from 'lib/selections'
 import { enginelessExecutor } from '../../lib/testHelpers'

 beforeAll(() => initPromise)
@ -52,7 +52,8 @@ async function testingSwapSketchFnCall({

 describe('testing swaping out sketch calls with xLine/xLineTo', () => {
  const bigExampleArr = [
-    `const part001 = startSketchAt([0, 0])`,
+    `const part001 = startSketchOn('XY')`,
+    `  |> startProfileAt([0, 0], %)`,
    `  |> lineTo({ to: [1, 1], tag: 'abc1' }, %)`,
    `  |> line({ to: [-2.04, -0.7], tag: 'abc2' }, %)`,
    `  |> angledLine({`,
@ -277,7 +278,8 @@ describe('testing swaping out sketch calls with xLine/xLineTo while keeping vari
    `const angledLineOfYLengthY = 0.89`,
    `const angledLineToXx = -1.86`,
    `const angledLineToYy = -0.76`,
-    `const part001 = startSketchAt([0, 0])`,
+    `const part001 = startSketchOn('XY')`,
+    `  |> startProfileAt([0, 0], %)`,
    // `  |> rx(90, %)`,
    `  |> lineTo([1, 1], %)`,
    `  |> line([lineX, 2.13], %)`,
@ -371,7 +373,8 @@ describe('testing swaping out sketch calls with xLine/xLineTo while keeping vari

 describe('testing getSketchSegmentIndexFromSourceRange', () => {
  const code = `
-const part001 = startSketchAt([0, 0.04]) // segment-in-start
+const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0.04], %) // segment-in-start
  |> line([0, 0.4], %)
  |> xLine(3.48, %)
  |> line([2.14, 1.35], %) // normal-segment
--- a/src/lang/std/sketchcombos.test.ts
+++ b/src/lang/std/sketchcombos.test.ts
@ -7,7 +7,8 @@ import {
  ConstraintType,
  getConstraintLevelFromSourceRange,
 } from './sketchcombos'
-import { Selections, ToolTip } from '../../useStore'
+import { ToolTip } from '../../useStore'
+import { Selections } from 'lib/selections'
 import { enginelessExecutor } from '../../lib/testHelpers'

 beforeAll(() => initPromise)
@ -92,7 +93,8 @@ const myVar2 = 5
 const myVar3 = 6
 const myAng = 40
 const myAng2 = 134
-const part001 = startSketchAt([0, 0])
+const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> line([1, 3.82], %) // ln-should-get-tag
  |> lineTo([myVar, 1], %) // ln-lineTo-xAbsolute should use angleToMatchLengthX helper
  |> lineTo([1, myVar], %) // ln-lineTo-yAbsolute should use angleToMatchLengthY helper
@ -128,7 +130,8 @@ const myVar2 = 5
 const myVar3 = 6
 const myAng = 40
 const myAng2 = 134
-const part001 = startSketchAt([0, 0])
+const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> line({ to: [1, 3.82], tag: 'seg01' }, %) // ln-should-get-tag
  |> angledLineToX([
       -angleToMatchLengthX('seg01', myVar, %),
@ -231,7 +234,8 @@ describe('testing transformAstForSketchLines for vertical and horizontal constra
  const inputScript = `const myVar = 2
 const myVar2 = 12
 const myVar3 = -10
-const part001 = startSketchAt([0, 0])
+const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> lineTo([1, 1], %)
  |> line([-6.28, 1.4], %) // select for horizontal constraint 1
  |> line([-1.07, myVar], %) // select for vertical constraint 1
@ -259,7 +263,8 @@ show(part001)
    const expectModifiedScript = `const myVar = 2
 const myVar2 = 12
 const myVar3 = -10
-const part001 = startSketchAt([0, 0])
+const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> lineTo([1, 1], %)
  |> xLine(-6.28, %) // select for horizontal constraint 1
  |> line([-1.07, myVar], %) // select for vertical constraint 1
@ -317,7 +322,8 @@ show(part001)
    const expectModifiedScript = `const myVar = 2
 const myVar2 = 12
 const myVar3 = -10
-const part001 = startSketchAt([0, 0])
+const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> lineTo([1, 1], %)
  |> line([-6.28, 1.4], %) // select for horizontal constraint 1
  |> yLine(myVar, %) // select for vertical constraint 1
@ -376,7 +382,8 @@ show(part001)
 describe('testing transformAstForSketchLines for vertical and horizontal distance constraints', () => {
  describe('testing setHorzDistance for line', () => {
    const inputScript = `const myVar = 1
-const part001 = startSketchAt([0, 0])
+const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> line([0.31, 1.67], %) // base selection
  |> line([0.45, 1.46], %)
  |> line([0.45, 1.46], %) // free
@ -477,7 +484,8 @@ const baseThickHalf = baseThick / 2
 const halfHeight = totalHeight / 2
 const halfArmAngle = armAngle / 2

-const part001 = startSketchAt([-0.01, -0.05])
+const part001 = startSketchOn('XY')
+  |> startProfileAt([-0.01, -0.05], %)
  |> line([0.01, 0.94 + 0], %) // partial
  |> xLine(3.03, %) // partial
  |> angledLine({
--- a/src/lang/std/sketchcombos.ts
+++ b/src/lang/std/sketchcombos.ts
@ -1,5 +1,6 @@
 import { TransformCallback } from './stdTypes'
-import { Selections, toolTips, ToolTip, Selection } from '../../useStore'
+import { toolTips, ToolTip } from '../../useStore'
+import { Selections, Selection } from 'lib/selections'
 import {
  CallExpression,
  Program,
@ -1306,7 +1307,7 @@ export function getRemoveConstraintsTransforms(
  return theTransforms
 }

-type PathToNodeMap = { [key: number]: PathToNode }
+export type PathToNodeMap = { [key: number]: PathToNode }

 export function transformSecondarySketchLinesTagFirst({
  ast,
--- a/src/lang/std/std.test.ts
+++ b/src/lang/std/std.test.ts
@ -5,7 +5,8 @@ beforeAll(() => initPromise)

 describe('testing angledLineThatIntersects', () => {
  it('angledLineThatIntersects should intersect with another line', async () => {
-    const code = (offset: string) => `const part001 = startSketchAt([0, 0])
+    const code = (offset: string) => `const part001 = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
  |> lineTo({to:[2, 2], tag: "yo"}, %)
  |> lineTo([3, 1], %)
  |> angledLineThatIntersects({
--- a/src/lang/std/stdTypes.ts
+++ b/src/lang/std/stdTypes.ts
@ -24,6 +24,7 @@ export interface PathReturn {

 export interface ModifyAstBase {
  node: Program
+  // TODO #896: Remove ProgramMemory from this interface
  previousProgramMemory: ProgramMemory
  pathToNode: PathToNode
 }
--- a/src/lang/util.ts
+++ b/src/lang/util.ts
@ -1,29 +1,29 @@
-import { Selections, StoreState } from '../useStore'
+import { Selections } from 'lib/selections'
 import { Program, PathToNode } from './wasm'
 import { getNodeFromPath } from './queryAst'
+import { ArtifactMap } from './std/engineConnection'
+import { isOverlap } from 'lib/utils'

-export function updateCursors(
-  setCursor: StoreState['setCursor'],
-  selectionRanges: Selections,
+export function pathMapToSelections(
+  ast: Program,
+  prevSelections: Selections,
  pathToNodeMap: { [key: number]: PathToNode }
-): (newAst: Program) => void {
-  return (newAst: Program) => {
-    const newSelections: Selections = {
-      ...selectionRanges,
-      codeBasedSelections: [],
-    }
-    Object.entries(pathToNodeMap).forEach(([index, path]) => {
-      const node = getNodeFromPath(newAst, path).node as any
-      const type = selectionRanges.codeBasedSelections[Number(index)].type
-      if (node) {
-        newSelections.codeBasedSelections.push({
-          range: [node.start, node.end],
-          type: type || 'default',
-        })
-      }
-    })
-    setCursor(newSelections)
+): Selections {
+  const newSelections: Selections = {
+    ...prevSelections,
+    codeBasedSelections: [],
  }
+  Object.entries(pathToNodeMap).forEach(([index, path]) => {
+    const node = getNodeFromPath(ast, path).node as any
+    const type = prevSelections.codeBasedSelections[Number(index)].type
+    if (node) {
+      newSelections.codeBasedSelections.push({
+        range: [node.start, node.end],
+        type: type || 'default',
+      })
+    }
+  })
+  return newSelections
 }

 export function isReducedMotion(): boolean {
@ -34,3 +34,27 @@ export function isReducedMotion(): boolean {
    window.matchMedia('(prefers-reduced-motion)').matches
  )
 }
+
+export function isCursorInSketchCommandRange(
+  artifactMap: ArtifactMap,
+  selectionRanges: Selections
+): string | false {
+  const overlapingEntries: [string, ArtifactMap[string]][] = Object.entries(
+    artifactMap
+  ).filter(([id, artifact]: [string, ArtifactMap[string]]) =>
+    selectionRanges.codeBasedSelections.some(
+      (selection) =>
+        Array.isArray(selection?.range) &&
+        Array.isArray(artifact?.range) &&
+        isOverlap(selection.range, artifact.range) &&
+        (artifact.commandType === 'start_path' ||
+          artifact.commandType === 'extend_path' ||
+          artifact.commandType === 'close_path')
+    )
+  )
+  return overlapingEntries.length && overlapingEntries[0][1].parentId
+    ? overlapingEntries[0][1].parentId
+    : overlapingEntries.find(
+        ([, artifact]) => artifact.commandType === 'start_path'
+      )?.[0] || false
+}
--- a/src/lang/wasm.ts
+++ b/src/lang/wasm.ts
@ -7,15 +7,12 @@ import init, {
 } from '../wasm-lib/pkg/wasm_lib'
 import { KCLError } from './errors'
 import { KclError as RustKclError } from '../wasm-lib/kcl/bindings/KclError'
-import {
-  EngineCommandManager,
-  ArtifactMap,
-  SourceRangeMap,
-} from './std/engineConnection'
+import { EngineCommandManager } from './std/engineConnection'
 import { ProgramReturn } from '../wasm-lib/kcl/bindings/ProgramReturn'
 import { MemoryItem } from '../wasm-lib/kcl/bindings/MemoryItem'
 import type { Program } from '../wasm-lib/kcl/bindings/Program'
 import type { Token } from '../wasm-lib/kcl/bindings/Token'
+import { DefaultPlanes } from '../wasm-lib/kcl/bindings/DefaultPlanes'

 export type { Program } from '../wasm-lib/kcl/bindings/Program'
 export type { Value } from '../wasm-lib/kcl/bindings/Value'
@ -69,13 +66,16 @@ const initialise = async () => {
    typeof window === 'undefined'
      ? 'http://127.0.0.1:3000'
      : window.location.origin.includes('tauri://localhost')
-      ? 'tauri://localhost'
+      ? 'tauri://localhost' // custom protocol for macOS
+      : window.location.origin.includes('tauri.localhost')
+      ? 'https://tauri.localhost' // fallback for Windows
      : window.location.origin.includes('localhost')
      ? 'http://localhost:3000'
      : window.location.origin && window.location.origin !== 'null'
      ? window.location.origin
      : 'http://localhost:3000'
  const fullUrl = baseUrl + '/wasm_lib_bg.wasm'
+  console.log(`Full URL for WASM: ${fullUrl}`)
  const input = await fetch(fullUrl)
  const buffer = await input.arrayBuffer()
  return init(buffer)
@ -118,22 +118,16 @@ export const executor = async (
  node: Program,
  programMemory: ProgramMemory = { root: {}, return: null },
  engineCommandManager: EngineCommandManager,
-  // work around while the gemotry is still be stored on the frontend
-  // will be removed when the stream UI is added.
-  tempMapCallback: (a: {
-    artifactMap: ArtifactMap
-    sourceRangeMap: SourceRangeMap
-  }) => void = () => {}
+  planes: DefaultPlanes
 ): Promise<ProgramMemory> => {
  engineCommandManager.startNewSession()
  const _programMemory = await _executor(
    node,
    programMemory,
-    engineCommandManager
+    engineCommandManager,
+    planes
  )
-  const { artifactMap, sourceRangeMap } =
-    await engineCommandManager.waitForAllCommands(node, _programMemory)
-  tempMapCallback({ artifactMap, sourceRangeMap })
+  await engineCommandManager.waitForAllCommands()

  engineCommandManager.endSession()
  return _programMemory
@ -142,13 +136,15 @@ export const executor = async (
 export const _executor = async (
  node: Program,
  programMemory: ProgramMemory = { root: {}, return: null },
-  engineCommandManager: EngineCommandManager
+  engineCommandManager: EngineCommandManager,
+  planes: DefaultPlanes
 ): Promise<ProgramMemory> => {
  try {
    const memory: ProgramMemory = await execute_wasm(
      JSON.stringify(node),
      JSON.stringify(programMemory),
-      engineCommandManager
+      engineCommandManager,
+      JSON.stringify(planes)
    )
    return memory
  } catch (e: any) {
@ -190,6 +186,7 @@ export const modifyAstForSketch = async (
  engineCommandManager: EngineCommandManager,
  ast: Program,
  variableName: string,
+  currentPlane: string,
  engineId: string
 ): Promise<Program> => {
  try {
@ -197,6 +194,7 @@ export const modifyAstForSketch = async (
      engineCommandManager,
      JSON.stringify(ast),
      variableName,
+      JSON.stringify(currentPlane),
      engineId
    )

--- a/src/lib/exampleKcl.ts
+++ b/src/lib/exampleKcl.ts
@ -1,19 +1,28 @@
-export const bracket = `// Material: 6061-T6 Aluminum
-const sigmaAllow = 35000 // psi
-const width = 9 // inch
+export const bracket = `const sigmaAllow = 15000 // psi
+const width = 11 // inch
 const p = 150 // Force on shelf - lbs
-const distance = 6 // inches
+const distance = 12 // inches
 const FOS = 2
+const thickness = sqrt(distance * p * FOS * 6 / ( sigmaAllow * width ))
+const filletR = thickness * 2
+const shelfMountL = 9
+const wallMountL = 8

-const leg1 = 5 // inches
-const leg2 = 8 // inches
-const thickness = sqrt(distance * p * FOS * 6 / sigmaAllow / width) // inches
-const bracket = startSketchAt([0, 0])
-  |> line([0, leg1], %)
-  |> line([leg2, 0], %)
+const bracket = startSketchOn('XY')
+  |> startProfileAt([0, 0], %)
+  |> line([0, wallMountL], %)
+  |> tangentialArc({
+    radius: filletR,
+    offset: 90
+  }, %)
+  |> line([-shelfMountL, 0], %)
  |> line([0, -thickness], %)
-  |> line([-leg2 + thickness, 0], %)
-  |> line([0, -leg1 + thickness], %)
+  |> line([shelfMountL, 0], %)
+  |> tangentialArc({
+    radius: filletR - thickness,
+    offset: -90
+  }, %)
+  |> line([0, -wallMountL], %)
  |> close(%)
  |> extrude(width, %)

--- a/src/lib/exportSave.ts
+++ b/src/lib/exportSave.ts
@ -25,7 +25,7 @@ export async function exportSave(data: ArrayBuffer) {
        }

        // Write the file.
-        await writeBinaryFile(filePath, uintArray)
+        await writeBinaryFile(filePath, file.contents)
      } else {
        // Download the file to the user's computer.
        // Now we need to download the files to the user's downloads folder.
--- a/src/lib/selections.ts
+++ b/src/lib/selections.ts
@ -0,0 +1,326 @@
+import { Models } from '@kittycad/lib'
+import { engineCommandManager } from 'lang/std/engineConnection'
+import { SourceRange } from 'lang/wasm'
+import { ModelingMachineEvent } from 'machines/modelingMachine'
+import { v4 as uuidv4 } from 'uuid'
+import { EditorSelection } from '@codemirror/state'
+import { kclManager } from 'lang/KclSinglton'
+import { SelectionRange } from '@uiw/react-codemirror'
+import { isOverlap } from 'lib/utils'
+
+/*
+How selections work is complex due to the nature that we rely on the engine
+to tell what has been selected after we send a click command. But than the
+app needs these selections to be based on cursors, therefore the app must
+be in control of selections. On top of that because we need to set cursor
+positions in code-mirror for selections, both from app logic, and still
+allow the user to add multiple cursors like a normal editor, it's best to
+let code mirror control cursor positions and assosiate those source ranges
+with entity ids from code-mirror events later.
+
+So it's a lot of back and forth. conceptually the back and forth is:
+
+1) we send a click command to the engine
+2) the engine sends back ids of entities that were clicked
+3) we associate that source ranges with those ids
+4) we set the codemirror selection based on those source ranges (taking
+  into account if the user is holding shift to add to current selections
+  or not). we also create and remember a SelectionRangeTypeMap
+5) Code mirror fires a an event that cursors have changed, we loop through
+  these ranges and associate them with entity ids again with the ArtifactMap,
+  but also we can pick up selection types using the SelectionRangeTypeMap
+6) we clear all previous selections in the engine and set the new ones
+
+The above is less likely to get stale but below is some more details,
+because this wonders all over the code-base, I've tried to centeralise it
+by putting relevant utils in this file. All of the functions below are
+pure with the exception of getEventForSelectWithPoint which makes a call
+to the engine, but it's a query call (not mutation) so I'm okay with this.
+Actual side effects that change cursors or tell the engine what's selected
+are still done throughout the in their relevant parts in the codebase.
+
+In detail:
+
+1) Click commands are mostly sent in stream.tsx search for
+  "select_with_point"
+2) The handler for when the engine sends back entitiy ids calls
+  getEventForSelectWithPoint, it fires an XState event to update our
+  selections is xstate context
+3 and 4) The XState handler for the above uses handleSelectionBatch and
+  handleSelectionWithShift to update the selections in xstate context as
+  well as returning our SelectionRangeTypeMap and a codeMirror specific
+  event to be dispatched.
+5) The codeMirror handler for changes to the cursor uses
+  processCodeMirrorRanges to associate the ranges back with their original
+  types and the entity ids (the id can vary depending on the type, as
+  there's only one source range for a given segment, but depending on if
+  the user selected the segment directly or the vertex, the id will be
+  different)
+6) We take all of the ids and create events for the engine with
+  resetAndSetEngineEntitySelectionCmds
+
+An important note is that if a user changes the cursor directly themselves
+then they skip directly to step 5, And these selections get a type of
+"default".
+
+There are a few more nuances than this, but best to find them in the code.
+*/
+
+export type Axis = 'y-axis' | 'x-axis' | 'z-axis'
+
+export type Selection = {
+  type:
+    | 'default'
+    | 'line-end'
+    | 'line-mid'
+    | 'face'
+    | 'point'
+    | 'edge'
+    | 'line'
+    | 'arc'
+    | 'all'
+  range: SourceRange
+}
+export type Selections = {
+  otherSelections: Axis[]
+  codeBasedSelections: Selection[]
+}
+
+export interface SelectionRangeTypeMap {
+  [key: number]: Selection['type']
+}
+
+interface RangeAndId {
+  id: string
+  range: SourceRange
+}
+
+export async function getEventForSelectWithPoint(
+  {
+    data,
+  }: Extract<
+    Models['OkModelingCmdResponse_type'],
+    { type: 'select_with_point' }
+  >,
+  { sketchEnginePathId }: { sketchEnginePathId: string }
+): Promise<ModelingMachineEvent> {
+  if (!data?.entity_id) {
+    return {
+      type: 'Set selection',
+      data: { selectionType: 'singleCodeCursor' },
+    }
+  }
+  const sourceRange = engineCommandManager.artifactMap[data.entity_id]?.range
+  if (engineCommandManager.artifactMap[data.entity_id]) {
+    return {
+      type: 'Set selection',
+      data: {
+        selectionType: 'singleCodeCursor',
+        selection: { range: sourceRange, type: 'default' },
+      },
+    }
+  }
+  // selected a vertex
+  const res = await engineCommandManager.sendSceneCommand({
+    type: 'modeling_cmd_req',
+    cmd_id: uuidv4(),
+    cmd: {
+      type: 'path_get_curve_uuids_for_vertices',
+      vertex_ids: [data.entity_id],
+      path_id: sketchEnginePathId,
+    },
+  })
+  const curveIds = res?.data?.data?.curve_ids
+  const ranges: RangeAndId[] = curveIds
+    .map(
+      (id: string): RangeAndId => ({
+        id,
+        range: engineCommandManager.artifactMap[id].range,
+      })
+    )
+    .sort((a: RangeAndId, b: RangeAndId) => a.range[0] - b.range[0])
+  // default to the head of the curve selected
+  const _sourceRange = ranges?.[0].range
+  const artifact = engineCommandManager.artifactMap[ranges?.[0]?.id]
+  if (artifact.type === 'result') {
+    artifact.headVertexId = data.entity_id
+  }
+  return {
+    type: 'Set selection',
+    data: {
+      selectionType: 'singleCodeCursor',
+      // line-end is used to indicate that headVertexId should be sent to the engine as "selected"
+      // not the whole curve
+      selection: { range: _sourceRange, type: 'line-end' },
+    },
+  }
+}
+
+export function handleSelectionBatch({
+  selections,
+}: {
+  selections: Selections
+}): {
+  selectionRangeTypeMap: SelectionRangeTypeMap
+  codeMirrorSelection?: EditorSelection
+} {
+  const ranges: ReturnType<typeof EditorSelection.cursor>[] = []
+  const selectionRangeTypeMap: SelectionRangeTypeMap = {}
+  selections.codeBasedSelections.forEach(({ range, type }) => {
+    if (range?.[1]) {
+      ranges.push(EditorSelection.cursor(range[1]))
+      selectionRangeTypeMap[range[1]] = type
+    }
+  })
+  if (ranges.length)
+    return {
+      selectionRangeTypeMap,
+      codeMirrorSelection: EditorSelection.create(
+        ranges,
+        selections.codeBasedSelections.length - 1
+      ),
+    }
+
+  return {
+    selectionRangeTypeMap,
+  }
+}
+
+export function handleSelectionWithShift({
+  codeSelection,
+  currestSelections,
+  isShiftDown,
+}: {
+  codeSelection?: Selection
+  currestSelections: Selections
+  isShiftDown: boolean
+}): {
+  selectionRangeTypeMap: SelectionRangeTypeMap
+  codeMirrorSelection?: EditorSelection
+} {
+  const code = kclManager.code
+  if (!codeSelection)
+    return handleSelectionBatch({
+      selections: {
+        otherSelections: currestSelections.otherSelections,
+        codeBasedSelections: [
+          {
+            range: [0, code.length ? code.length - 1 : 0],
+            type: 'default',
+          },
+        ],
+      },
+    })
+  const selections: Selections = {
+    ...currestSelections,
+    codeBasedSelections: isShiftDown
+      ? [...currestSelections.codeBasedSelections, codeSelection]
+      : [codeSelection],
+  }
+  return handleSelectionBatch({ selections })
+}
+
+type SelectionToEngine = { type: Selection['type']; id: string }
+
+export function processCodeMirrorRanges({
+  codeMirrorRanges,
+  selectionRanges,
+  selectionRangeTypeMap,
+}: {
+  codeMirrorRanges: readonly SelectionRange[]
+  selectionRanges: Selections
+  selectionRangeTypeMap: SelectionRangeTypeMap
+}): null | {
+  modelingEvent: ModelingMachineEvent
+  engineEvents: Models['WebSocketRequest_type'][]
+} {
+  const isChange =
+    codeMirrorRanges.length !== selectionRanges.codeBasedSelections.length ||
+    codeMirrorRanges.some(({ from, to }, i) => {
+      return (
+        from !== selectionRanges.codeBasedSelections[i].range[0] ||
+        to !== selectionRanges.codeBasedSelections[i].range[1]
+      )
+    })
+
+  if (!isChange) return null
+  const codeBasedSelections: Selections['codeBasedSelections'] =
+    codeMirrorRanges.map(({ from, to }) => {
+      if (selectionRangeTypeMap[to]) {
+        return {
+          type: selectionRangeTypeMap[to],
+          range: [from, to],
+        }
+      }
+      return {
+        type: 'default',
+        range: [from, to],
+      }
+    })
+  const idBasedSelections: SelectionToEngine[] = codeBasedSelections
+    .map(({ type, range }): null | SelectionToEngine => {
+      // TODO #868: loops over all artifacts will become inefficient at a large scale
+      const entriesWithOverlap = Object.entries(
+        engineCommandManager.artifactMap || {}
+      ).filter(([_, artifact]) => {
+        return artifact.range && isOverlap(artifact.range, range)
+          ? artifact
+          : false
+      })
+      if (entriesWithOverlap.length) {
+        const [id, artifact] = entriesWithOverlap?.[0]
+        return {
+          type,
+          id:
+            type === 'line-end' &&
+            artifact.type === 'result' &&
+            artifact.headVertexId
+              ? artifact.headVertexId
+              : id,
+        }
+      }
+      return null
+    })
+    .filter(Boolean) as any
+
+  if (!selectionRanges) return null
+  return {
+    modelingEvent: {
+      type: 'Set selection',
+      data: {
+        selectionType: 'mirrorCodeMirrorSelections',
+        selection: {
+          ...selectionRanges,
+          codeBasedSelections,
+        },
+      },
+    },
+    engineEvents: resetAndSetEngineEntitySelectionCmds(idBasedSelections),
+  }
+}
+
+export function resetAndSetEngineEntitySelectionCmds(
+  selections: SelectionToEngine[]
+): Models['WebSocketRequest_type'][] {
+  if (!engineCommandManager.engineConnection?.isReady()) {
+    console.log('engine connection isnt ready')
+    return []
+  }
+  return [
+    {
+      type: 'modeling_cmd_req',
+      cmd: {
+        type: 'select_clear',
+      },
+      cmd_id: uuidv4(),
+    },
+    {
+      type: 'modeling_cmd_req',
+      cmd: {
+        type: 'select_add',
+        entities: selections.map(({ id }) => id),
+      },
+      cmd_id: uuidv4(),
+    },
+  ]
+}
--- a/src/lib/sorting.ts
+++ b/src/lib/sorting.ts
@ -43,15 +43,12 @@ export function getSortFunction(sortBy: string) {
    a: ProjectWithEntryPointMetadata,
    b: ProjectWithEntryPointMetadata
  ) => {
-    if (
-      a.entrypoint_metadata?.modifiedAt &&
-      b.entrypoint_metadata?.modifiedAt
-    ) {
+    if (a.entrypointMetadata?.modifiedAt && b.entrypointMetadata?.modifiedAt) {
      return !sortBy || sortBy.includes('desc')
-        ? b.entrypoint_metadata.modifiedAt.getTime() -
-            a.entrypoint_metadata.modifiedAt.getTime()
-        : a.entrypoint_metadata.modifiedAt.getTime() -
-            b.entrypoint_metadata.modifiedAt.getTime()
+        ? b.entrypointMetadata.modifiedAt.getTime() -
+            a.entrypointMetadata.modifiedAt.getTime()
+        : a.entrypointMetadata.modifiedAt.getTime() -
+            b.entrypointMetadata.modifiedAt.getTime()
    }
    return 0
  }
--- a/src/lib/tauriFS.test.ts
+++ b/src/lib/tauriFS.test.ts
@ -1,10 +1,14 @@
+import { FileEntry } from '@tauri-apps/api/fs'
 import {
  MAX_PADDING,
+  deepFileFilter,
  getNextProjectIndex,
+  getPartsCount,
  interpolateProjectNameWithIndex,
+  isRelevantFileOrDir,
 } from './tauriFS'

-describe('Test file utility functions', () => {
+describe('Test project name utility functions', () => {
  it('interpolates a project name without an index', () => {
    expect(interpolateProjectNameWithIndex('test', 1)).toBe('test')
  })
@ -46,3 +50,101 @@ describe('Test file utility functions', () => {
    expect(getNextProjectIndex('new-project-$n', testFiles)).toBe(8)
  })
 })
+
+describe('Test file tree utility functions', () => {
+  const baseFiles: FileEntry[] = [
+    {
+      name: 'show-me.kcl',
+      path: '/projects/show-me.kcl',
+    },
+    {
+      name: 'hide-me.jpg',
+      path: '/projects/hide-me.jpg',
+    },
+    {
+      name: '.gitignore',
+      path: '/projects/.gitignore',
+    },
+  ]
+
+  const filteredBaseFiles: FileEntry[] = [
+    {
+      name: 'show-me.kcl',
+      path: '/projects/show-me.kcl',
+    },
+  ]
+
+  it('Only includes files relevant to the project in a flat directory', () => {
+    expect(deepFileFilter(baseFiles, isRelevantFileOrDir)).toEqual(
+      filteredBaseFiles
+    )
+  })
+
+  const nestedFiles: FileEntry[] = [
+    ...baseFiles,
+    {
+      name: 'show-me',
+      path: '/projects/show-me',
+      children: [
+        {
+          name: 'show-me-nested',
+          path: '/projects/show-me/show-me-nested',
+          children: baseFiles,
+        },
+        {
+          name: 'hide-me',
+          path: '/projects/show-me/hide-me',
+          children: baseFiles.filter((file) => file.name !== 'show-me.kcl'),
+        },
+      ],
+    },
+    {
+      name: 'hide-me',
+      path: '/projects/hide-me',
+      children: baseFiles.filter((file) => file.name !== 'show-me.kcl'),
+    },
+  ]
+
+  const filteredNestedFiles: FileEntry[] = [
+    ...filteredBaseFiles,
+    {
+      name: 'show-me',
+      path: '/projects/show-me',
+      children: [
+        {
+          name: 'show-me-nested',
+          path: '/projects/show-me/show-me-nested',
+          children: filteredBaseFiles,
+        },
+      ],
+    },
+  ]
+
+  it('Only includes directories that include files relevant to the project in a nested directory', () => {
+    expect(deepFileFilter(nestedFiles, isRelevantFileOrDir)).toEqual(
+      filteredNestedFiles
+    )
+  })
+
+  const withHiddenDir: FileEntry[] = [
+    ...baseFiles,
+    {
+      name: '.hide-me',
+      path: '/projects/.hide-me',
+      children: baseFiles,
+    },
+  ]
+
+  it(`Hides folders that begin with a ".", even if they contain relevant files`, () => {
+    expect(deepFileFilter(withHiddenDir, isRelevantFileOrDir)).toEqual(
+      filteredBaseFiles
+    )
+  })
+
+  it(`Properly counts the number of relevant files and directories in a project`, () => {
+    expect(getPartsCount(nestedFiles)).toEqual({
+      kclFileCount: 2,
+      kclDirCount: 2,
+    })
+  })
+})
--- a/src/lib/tauriFS.ts
+++ b/src/lib/tauriFS.ts
@ -5,16 +5,18 @@ import {
  readDir,
  writeTextFile,
 } from '@tauri-apps/api/fs'
-import { documentDir, homeDir } from '@tauri-apps/api/path'
+import { documentDir, homeDir, sep } from '@tauri-apps/api/path'
 import { isTauri } from './isTauri'
 import { ProjectWithEntryPointMetadata } from '../Router'
 import { metadata } from 'tauri-plugin-fs-extra-api'
+import { bracket } from './exampleKcl'

 const PROJECT_FOLDER = 'kittycad-modeling-projects'
 export const FILE_EXT = '.kcl'
 export const PROJECT_ENTRYPOINT = 'main' + FILE_EXT
 const INDEX_IDENTIFIER = '$n' // $nn.. will pad the number with 0s
 export const MAX_PADDING = 7
+const RELEVANT_FILE_TYPES = ['kcl']

 // Initializes the project directory and returns the path
 export async function initializeProjectDirectory(directory: string) {
@ -69,7 +71,7 @@ export async function getProjectsInDir(projectDir: string) {

  const projectsWithMetadata = await Promise.all(
    readProjects.map(async (p) => ({
-      entrypoint_metadata: await metadata(p.path + '/' + PROJECT_ENTRYPOINT),
+      entrypointMetadata: await metadata(p.path + sep + PROJECT_ENTRYPOINT),
      ...p,
    }))
  )
@ -77,6 +79,135 @@ export async function getProjectsInDir(projectDir: string) {
  return projectsWithMetadata
 }

+export const isHidden = (fileOrDir: FileEntry) =>
+  !!fileOrDir.name?.startsWith('.')
+
+export const isDir = (fileOrDir: FileEntry) =>
+  'children' in fileOrDir && fileOrDir.children !== undefined
+
+export function deepFileFilter(
+  entries: FileEntry[],
+  filterFn: (f: FileEntry) => boolean
+): FileEntry[] {
+  const filteredEntries: FileEntry[] = []
+  for (const fileOrDir of entries) {
+    if ('children' in fileOrDir && fileOrDir.children !== undefined) {
+      const filteredChildren = deepFileFilter(fileOrDir.children, filterFn)
+      if (filterFn(fileOrDir)) {
+        filteredEntries.push({
+          ...fileOrDir,
+          children: filteredChildren,
+        })
+      }
+    } else if (filterFn(fileOrDir)) {
+      filteredEntries.push(fileOrDir)
+    }
+  }
+  return filteredEntries
+}
+
+export function deepFileFilterFlat(
+  entries: FileEntry[],
+  filterFn: (f: FileEntry) => boolean
+): FileEntry[] {
+  const filteredEntries: FileEntry[] = []
+  for (const fileOrDir of entries) {
+    if ('children' in fileOrDir && fileOrDir.children !== undefined) {
+      const filteredChildren = deepFileFilterFlat(fileOrDir.children, filterFn)
+      if (filterFn(fileOrDir)) {
+        filteredEntries.push({
+          ...fileOrDir,
+          children: filteredChildren,
+        })
+      }
+      filteredEntries.push(...filteredChildren)
+    } else if (filterFn(fileOrDir)) {
+      filteredEntries.push(fileOrDir)
+    }
+  }
+  return filteredEntries
+}
+
+// Read the contents of a project directory
+// and return all relevant files and sub-directories recursively
+export async function readProject(projectDir: string) {
+  const readFiles = await readDir(projectDir, {
+    recursive: true,
+  })
+
+  return deepFileFilter(readFiles, isRelevantFileOrDir)
+}
+
+// Given a read project, return the number of .kcl files,
+// both in the root directory and in sub-directories,
+// and folders that contain at least one .kcl file
+export function getPartsCount(project: FileEntry[]) {
+  const flatProject = deepFileFilterFlat(project, isRelevantFileOrDir)
+
+  const kclFileCount = flatProject.filter((f) =>
+    f.name?.endsWith(FILE_EXT)
+  ).length
+  const kclDirCount = flatProject.filter((f) => f.children !== undefined).length
+
+  return {
+    kclFileCount,
+    kclDirCount,
+  }
+}
+
+// Determines if a file or directory is relevant to the project
+// i.e. not a hidden file or directory, and is a relevant file type
+// or contains at least one relevant file (even if it's nested)
+// or is a completely empty directory
+export function isRelevantFileOrDir(fileOrDir: FileEntry) {
+  let isRelevantDir = false
+  if ('children' in fileOrDir && fileOrDir.children !== undefined) {
+    isRelevantDir =
+      !isHidden(fileOrDir) &&
+      (fileOrDir.children.some(isRelevantFileOrDir) ||
+        fileOrDir.children.length === 0)
+  }
+  const isRelevantFile =
+    !isHidden(fileOrDir) &&
+    RELEVANT_FILE_TYPES.some((ext) => fileOrDir.name?.endsWith(ext))
+
+  return (
+    (isDir(fileOrDir) && isRelevantDir) || (!isDir(fileOrDir) && isRelevantFile)
+  )
+}
+
+// Deeply sort the files and directories in a project like VS Code does:
+// The main.kcl file is always first, then files, then directories
+// Files and directories are sorted alphabetically
+export function sortProject(project: FileEntry[]): FileEntry[] {
+  const sortedProject = project.sort((a, b) => {
+    if (a.name === PROJECT_ENTRYPOINT) {
+      return -1
+    } else if (b.name === PROJECT_ENTRYPOINT) {
+      return 1
+    } else if (a.children === undefined && b.children !== undefined) {
+      return -1
+    } else if (a.children !== undefined && b.children === undefined) {
+      return 1
+    } else if (a.name && b.name) {
+      return a.name.localeCompare(b.name)
+    } else {
+      return 0
+    }
+  })
+
+  return sortedProject.map((fileOrDir: FileEntry) => {
+    if ('children' in fileOrDir && fileOrDir.children !== undefined) {
+      return {
+        ...fileOrDir,
+        children: sortProject(fileOrDir.children),
+      }
+    } else {
+      return fileOrDir
+    }
+  })
+}
+
 // Creates a new file in the default directory with the default project name
 // Returns the path to the new file
 export async function createNewProject(
@ -94,7 +225,7 @@ export async function createNewProject(
    })
  }

-  await writeTextFile(path + '/' + PROJECT_ENTRYPOINT, '').catch((err) => {
+  await writeTextFile(path + sep + PROJECT_ENTRYPOINT, bracket).catch((err) => {
    console.error('Error creating new file:', err)
    throw err
  })
@ -102,13 +233,13 @@ export async function createNewProject(
  const m = await metadata(path)

  return {
-    name: path.slice(path.lastIndexOf('/') + 1),
+    name: path.slice(path.lastIndexOf(sep) + 1),
    path: path,
-    entrypoint_metadata: m,
+    entrypointMetadata: m,
    children: [
      {
        name: PROJECT_ENTRYPOINT,
-        path: path + '/' + PROJECT_ENTRYPOINT,
+        path: path + sep + PROJECT_ENTRYPOINT,
        children: [],
      },
    ],
--- a/src/lib/testHelpers.ts
+++ b/src/lib/testHelpers.ts
@ -4,6 +4,7 @@ import {
  EngineCommand,
 } from '../lang/std/engineConnection'
 import { Models } from '@kittycad/lib'
+import { v4 as uuidv4 } from 'uuid'

 type WebSocketResponse = Models['OkWebSocketResponseData_type']

@ -64,7 +65,11 @@ export async function enginelessExecutor(
  }) as any as EngineCommandManager
  await mockEngineCommandManager.waitForReady
  mockEngineCommandManager.startNewSession()
-  const programMemory = await _executor(ast, pm, mockEngineCommandManager)
+  const programMemory = await _executor(ast, pm, mockEngineCommandManager, {
+    xy: uuidv4(),
+    yz: uuidv4(),
+    xz: uuidv4(),
+  })
  await mockEngineCommandManager.waitForAllCommands()
  return programMemory
 }
@ -83,7 +88,11 @@ export async function executor(
  })
  await engineCommandManager.waitForReady
  engineCommandManager.startNewSession()
-  const programMemory = await _executor(ast, pm, engineCommandManager)
-  await engineCommandManager.waitForAllCommands(ast, programMemory)
+  const programMemory = await _executor(ast, pm, engineCommandManager, {
+    xy: uuidv4(),
+    yz: uuidv4(),
+    xz: uuidv4(),
+  })
+  await engineCommandManager.waitForAllCommands()
  return programMemory
 }
--- a/src/machines/fileMachine.ts
+++ b/src/machines/fileMachine.ts
@ -0,0 +1,178 @@
+import { assign, createMachine } from 'xstate'
+import { ProjectWithEntryPointMetadata } from 'Router'
+import { FileEntry } from '@tauri-apps/api/fs'
+
+export const FILE_PERSIST_KEY = 'Last opened KCL files'
+export const DEFAULT_FILE_NAME = 'Untitled'
+
+export const fileMachine = createMachine(
+  {
+    /** @xstate-layout N4IgpgJg5mDOIC5QAkD2BbMACdBDAxgBYCWAdmAHTK6xampYAOATqgFZj4AusAxAMLMwuLthbtOXANoAGALqJQjVLGJdiqUopAAPRAHYAbPooAWABwBGUwE5zAJgeGArM-MAaEAE9EN0wGYKGX97GX1nGVNDS0MbfwBfeM80TBwCEnIqGiZWDm4+ACUwUlxU8TzpeW1lVXVNbT0EcJNg02d-fzt7fU77Tx8EQ0iKCPtnfUsjGRtLGXtE5IxsPCIySmpacsk+QWFRHIluWQUkEBq1DS1TxqN7ChjzOxtXf0t7a37EcwsRibH-ZzRezA8wLEApZbpNZZTa5ba8AAiYAANmB9lsjlVTuc6ldQDdDOYKP5bm0os5TDJDJ8mlEzPpzIZHA4bO9umCIWlVpkNgcKnwAPKMYp8yTHaoqC71a6IEmBUz6BkWZzWDq2Uw0qzOIJAwz+PXWfSmeZJcFLLkZSi7ERkKCi7i8CCaShkABuqAA1pR8EIRGAALQYyonJSS3ENRDA2wUeyvd6dPVhGw0-RhGOp8IA8xGFkc80rS0Ua3qUh2oO8MDMVjMCiMZEiABmqGY6AoPr2AaD4uxYcuEYQoQpQWNNjsMnMgLGKbT3TC7TcOfsNjzqQL0KKJXQtvtXEdzoobs9lCEm87cMxIbOvel+MQqtMQRmS5ks31sZpAUsZkcIX+cQZJIrpC3KUBupTbuWlbVrW9ZcE2LYUCepRnocwYSrUfYyggbzvBQ+jMq49imLYwTUt4iCft+5i-u0-7UfoQEWtCSKoiWZbnruTqZIeXoUBAKJoihFTdqGGE3rod7UdqsQTI8hiGAqrIauRA7RvYeoqhO1jtAqjFrpkLFohBHEVlWzYwY2zatvxrFCWKWKiVKeISdh4yBJE-jGs4fhhA4zg0kRNgxhplhaW0nn4XpUKZEUuAQMZqF8FxLqkO6vG+hAgYcbAIlXmJzmNERdy0RYNiKgpthxDSEU6q8MSTJYjWGFFIEULF8WljuSX7jxx7CJlQY5ZYl44pht4IP61gyPc8njt0lIuH51UKrVVITEyMy2C1hbtQl-KmdBdaWQhGVZYluWjeJjSTf402shMEyuEyljPAFL0UNmMiuN86lWHMiSmvQ-HwKcnL6WA6FOf2k3mESMRDA4RpUm4U4qf6gSEt0QIvvqfjOCaiyrtF6zZPQXWQ+GWFlUEsbmNMf1TV9NLeXDcqRIySnNaaYPEzC5M9vl-b+IyFCjupryPF9jKWP5Kks-cbMWLERHRNt0LFntkgU2NLk4dqsz43YsTK++Kk2C+MbTOOcxzOMrhqzFxTgZ1Qba1dd6BUE1jGsLMxxK9KlDNqm3tMLUQvqYlgO5QhlsTubsFXesTTUuPTfHExshDS0RftRftGgEnTZtHbX9Zr+QJ-2S4Y3qnmTC+4tMyp1EfeOnmeQqdOhyXQrFOXXCV1hCkmLDOnBJYvRRDSsyRzGjiKj0lKdAkANAA */
+    id: 'File machine',
+
+    initial: 'Reading files',
+
+    context: {
+      project: {} as ProjectWithEntryPointMetadata,
+      selectedDirectory: {} as FileEntry,
+    },
+
+    on: {
+      assign: {
+        actions: assign((_, event) => ({
+          ...event.data,
+        })),
+        target: '.Reading files',
+      },
+    },
+    states: {
+      'Has no files': {
+        on: {
+          'Create file': {
+            target: 'Creating file',
+          },
+        },
+      },
+
+      'Has files': {
+        on: {
+          'Rename file': {
+            target: 'Renaming file',
+          },
+
+          'Create file': {
+            target: 'Creating file',
+          },
+
+          'Delete file': {
+            target: 'Deleting file',
+          },
+
+          'Open file': {
+            target: 'Opening file',
+          },
+
+          'Set selected directory': {
+            target: 'Has files',
+            actions: ['setSelectedDirectory'],
+          },
+        },
+      },
+
+      'Creating file': {
+        invoke: {
+          id: 'create-file',
+          src: 'createFile',
+          onDone: [
+            {
+              target: 'Reading files',
+              actions: ['toastSuccess'],
+            },
+          ],
+          onError: [
+            {
+              target: 'Reading files',
+              actions: ['toastError'],
+            },
+          ],
+        },
+      },
+
+      'Renaming file': {
+        invoke: {
+          id: 'rename-file',
+          src: 'renameFile',
+          onDone: [
+            {
+              target: '#File machine.Reading files',
+              actions: ['toastSuccess'],
+            },
+          ],
+          onError: [
+            {
+              target: '#File machine.Reading files',
+              actions: ['toastError'],
+            },
+          ],
+        },
+      },
+
+      'Deleting file': {
+        invoke: {
+          id: 'delete-file',
+          src: 'deleteFile',
+          onDone: [
+            {
+              actions: ['toastSuccess'],
+              target: '#File machine.Reading files',
+            },
+          ],
+          onError: {
+            actions: ['toastError'],
+            target: '#File machine.Has files',
+          },
+        },
+      },
+
+      'Reading files': {
+        invoke: {
+          id: 'read-files',
+          src: 'readFiles',
+          onDone: [
+            {
+              cond: 'Has at least 1 file',
+              target: 'Has files',
+              actions: ['setFiles'],
+            },
+            {
+              target: 'Has no files',
+              actions: ['setFiles'],
+            },
+          ],
+          onError: [
+            {
+              target: 'Has no files',
+              actions: ['toastError'],
+            },
+          ],
+        },
+      },
+
+      'Opening file': {
+        entry: ['navigateToFile'],
+      },
+    },
+
+    schema: {
+      events: {} as
+        | { type: 'Open file'; data: { name: string } }
+        | {
+            type: 'Rename file'
+            data: { oldName: string; newName: string; isDir: boolean }
+          }
+        | { type: 'Create file'; data: { name: string; makeDir: boolean } }
+        | { type: 'Delete file'; data: FileEntry }
+        | { type: 'Set selected directory'; data: FileEntry }
+        | { type: 'navigate'; data: { name: string } }
+        | {
+            type: 'done.invoke.read-files'
+            data: ProjectWithEntryPointMetadata
+          }
+        | { type: 'assign'; data: { [key: string]: any } },
+    },
+
+    predictableActionArguments: true,
+    preserveActionOrder: true,
+    tsTypes: {} as import('./fileMachine.typegen').Typegen0,
+  },
+  {
+    actions: {
+      setFiles: assign((_, event) => {
+        return { project: event.data }
+      }),
+      setSelectedDirectory: assign((_, event) => {
+        return { selectedDirectory: event.data }
+      }),
+    },
+  }
+)
--- a/src/machines/fileMachine.typegen.ts
+++ b/src/machines/fileMachine.typegen.ts
@ -0,0 +1,96 @@
+// This file was automatically generated. Edits will be overwritten
+
+export interface Typegen0 {
+  '@@xstate/typegen': true
+  internalEvents: {
+    'done.invoke.create-file': {
+      type: 'done.invoke.create-file'
+      data: unknown
+      __tip: 'See the XState TS docs to learn how to strongly type this.'
+    }
+    'done.invoke.delete-file': {
+      type: 'done.invoke.delete-file'
+      data: unknown
+      __tip: 'See the XState TS docs to learn how to strongly type this.'
+    }
+    'done.invoke.read-files': {
+      type: 'done.invoke.read-files'
+      data: unknown
+      __tip: 'See the XState TS docs to learn how to strongly type this.'
+    }
+    'done.invoke.rename-file': {
+      type: 'done.invoke.rename-file'
+      data: unknown
+      __tip: 'See the XState TS docs to learn how to strongly type this.'
+    }
+    'error.platform.create-file': {
+      type: 'error.platform.create-file'
+      data: unknown
+    }
+    'error.platform.delete-file': {
+      type: 'error.platform.delete-file'
+      data: unknown
+    }
+    'error.platform.read-files': {
+      type: 'error.platform.read-files'
+      data: unknown
+    }
+    'error.platform.rename-file': {
+      type: 'error.platform.rename-file'
+      data: unknown
+    }
+    'xstate.init': { type: 'xstate.init' }
+  }
+  invokeSrcNameMap: {
+    createFile: 'done.invoke.create-file'
+    deleteFile: 'done.invoke.delete-file'
+    readFiles: 'done.invoke.read-files'
+    renameFile: 'done.invoke.rename-file'
+  }
+  missingImplementations: {
+    actions: 'navigateToFile' | 'toastError' | 'toastSuccess'
+    delays: never
+    guards: 'Has at least 1 file'
+    services: 'createFile' | 'deleteFile' | 'readFiles' | 'renameFile'
+  }
+  eventsCausingActions: {
+    navigateToFile: 'Open file'
+    setFiles: 'done.invoke.read-files'
+    setSelectedDirectory: 'Set selected directory'
+    toastError:
+      | 'error.platform.create-file'
+      | 'error.platform.delete-file'
+      | 'error.platform.read-files'
+      | 'error.platform.rename-file'
+    toastSuccess:
+      | 'done.invoke.create-file'
+      | 'done.invoke.delete-file'
+      | 'done.invoke.rename-file'
+  }
+  eventsCausingDelays: {}
+  eventsCausingGuards: {
+    'Has at least 1 file': 'done.invoke.read-files'
+  }
+  eventsCausingServices: {
+    createFile: 'Create file'
+    deleteFile: 'Delete file'
+    readFiles:
+      | 'assign'
+      | 'done.invoke.create-file'
+      | 'done.invoke.delete-file'
+      | 'done.invoke.rename-file'
+      | 'error.platform.create-file'
+      | 'error.platform.rename-file'
+      | 'xstate.init'
+    renameFile: 'Rename file'
+  }
+  matchesStates:
+    | 'Creating file'
+    | 'Deleting file'
+    | 'Has files'
+    | 'Has no files'
+    | 'Opening file'
+    | 'Reading files'
+    | 'Renaming file'
+  tags: never
+}
--- a/Show More
+++ b/Show More