diff --git a/e2e/playwright/basic-sketch.spec.ts b/e2e/playwright/basic-sketch.spec.ts
index 0ff50e1f0..578e7e7ef 100644
--- a/e2e/playwright/basic-sketch.spec.ts
+++ b/e2e/playwright/basic-sketch.spec.ts
@@ -1,4 +1,5 @@
-import { test, expect, Page } from './zoo-test'
+import { Page } from '@playwright/test'
+import { test, expect } from './zoo-test'
 import {
   getUtils,
   TEST_COLORS,
diff --git a/e2e/playwright/can-create-sketches-on-all-planes-and-their-back-sides.spec.ts b/e2e/playwright/can-create-sketches-on-all-planes-and-their-back-sides.spec.ts
index 3a3aaedb8..218cd0e59 100644
--- a/e2e/playwright/can-create-sketches-on-all-planes-and-their-back-sides.spec.ts
+++ b/e2e/playwright/can-create-sketches-on-all-planes-and-their-back-sides.spec.ts
@@ -1,4 +1,5 @@
-import { test, expect, Page } from './zoo-test'
+import { Page } from '@playwright/test'
+import { test, expect } from './zoo-test'
 import { HomePageFixture } from './fixtures/homePageFixture'
 import { getUtils } from './test-utils'
 import { EngineCommand } from 'lang/std/artifactGraph'
diff --git a/e2e/playwright/desktop-export.spec.ts b/e2e/playwright/desktop-export.spec.ts
index ae92071ac..76bf36009 100644
--- a/e2e/playwright/desktop-export.spec.ts
+++ b/e2e/playwright/desktop-export.spec.ts
@@ -10,7 +10,11 @@ import fsp from 'fs/promises'
 test(
   'export works on the first try',
   { tag: ['@electron', '@skipLocalEngine'] },
-  async ({ page, context, scene }, testInfo) => {
+  async ({ page, context, scene, tronApp }, testInfo) => {
+    if (!tronApp) {
+      fail()
+    }
+
     await context.folderSetupFn(async (dir) => {
       const bracketDir = path.join(dir, 'bracket')
       await Promise.all([fsp.mkdir(bracketDir, { recursive: true })])
@@ -86,7 +90,7 @@ test(
       await expect(exportingToastMessage).not.toBeVisible()
 
       const firstFileFullPath = path.resolve(
-        getPlaywrightDownloadDir(page),
+        getPlaywrightDownloadDir(tronApp.projectDirName),
         exportFileName
       )
       await test.step('Check the export size', async () => {
@@ -165,7 +169,7 @@ test(
         ]))
 
       const secondFileFullPath = path.resolve(
-        getPlaywrightDownloadDir(page),
+        getPlaywrightDownloadDir(tronApp.projectDirName),
         exportFileName
       )
       await test.step('Check the export size', async () => {
diff --git a/e2e/playwright/file-tree.spec.ts b/e2e/playwright/file-tree.spec.ts
index fef404739..4b28a25c8 100644
--- a/e2e/playwright/file-tree.spec.ts
+++ b/e2e/playwright/file-tree.spec.ts
@@ -158,11 +158,14 @@ test.describe('when using the file tree to', () => {
       await createNewFile('lee')
 
       await test.step('Postcondition: there are 5 new lee-*.kcl files', async () => {
-        await expect(
-          page
-            .locator('[data-testid="file-pane-scroll-container"] button')
-            .filter({ hasText: /lee[-]?[0-5]?/ })
-        ).toHaveCount(5)
+        await expect
+          .poll(() =>
+            page
+              .locator('[data-testid="file-pane-scroll-container"] button')
+              .filter({ hasText: /lee[-]?[0-5]?/ })
+              .count()
+          )
+          .toEqual(5)
       })
     }
   )
diff --git a/e2e/playwright/fixtures/cmdBarFixture.ts b/e2e/playwright/fixtures/cmdBarFixture.ts
index 865aea548..18800ef9e 100644
--- a/e2e/playwright/fixtures/cmdBarFixture.ts
+++ b/e2e/playwright/fixtures/cmdBarFixture.ts
@@ -27,28 +27,19 @@ type CmdBarSerialised =
 
 export class CmdBarFixture {
   public page: Page
-
-  get cmdBarOpenBtn() {
-    return this.page.getByTestId('command-bar-open-button')
-  }
-
-  get cmdBarElement() {
-    return this.page.getByTestId('command-bar')
-  }
+  public cmdBarOpenBtn!: Locator
+  public cmdBarElement!: Locator
 
   constructor(page: Page) {
     this.page = page
+    this.cmdBarOpenBtn = this.page.getByTestId('command-bar-open-button')
+    this.cmdBarElement = this.page.getByTestId('command-bar')
   }
 
   get currentArgumentInput() {
     return this.page.getByTestId('cmd-bar-arg-value')
   }
 
-  // Put all selectors here because this method is re-run on fixture creation.
-  reConstruct = (page: Page) => {
-    this.page = page
-  }
-
   private _serialiseCmdBar = async (): Promise<CmdBarSerialised> => {
     if (!(await this.page.getByTestId('command-bar-wrapper').isVisible())) {
       return { stage: 'commandBarClosed' }
diff --git a/e2e/playwright/fixtures/editorFixture.ts b/e2e/playwright/fixtures/editorFixture.ts
index b8c5e2d82..c4723e4fd 100644
--- a/e2e/playwright/fixtures/editorFixture.ts
+++ b/e2e/playwright/fixtures/editorFixture.ts
@@ -24,11 +24,6 @@ export class EditorFixture {
 
   constructor(page: Page) {
     this.page = page
-    this.reConstruct(page)
-  }
-  reConstruct = (page: Page) => {
-    this.page = page
-
     this.codeContent = page.locator('.cm-content[data-language="kcl"]')
     this.diagnosticsTooltip = page.locator('.cm-tooltip-lint')
     this.diagnosticsGutterIcon = page.locator('.cm-lint-marker-error')
diff --git a/e2e/playwright/fixtures/fixtureSetup.ts b/e2e/playwright/fixtures/fixtureSetup.ts
index 90ed51dbe..7e5897fde 100644
--- a/e2e/playwright/fixtures/fixtureSetup.ts
+++ b/e2e/playwright/fixtures/fixtureSetup.ts
@@ -1,13 +1,31 @@
+/* eslint-disable react-hooks/rules-of-hooks */
+
 import type {
   BrowserContext,
   ElectronApplication,
+  Fixtures as PlaywrightFixtures,
   TestInfo,
   Page,
 } from '@playwright/test'
 
-import { getUtils, setup, setupElectron } from '../test-utils'
+import {
+  _electron as electron,
+  PlaywrightTestArgs,
+  PlaywrightWorkerArgs,
+} from '@playwright/test'
+
+import * as TOML from '@iarna/toml'
+import {
+  TEST_SETTINGS_KEY,
+  TEST_SETTINGS_CORRUPTED,
+  TEST_SETTINGS,
+  TEST_SETTINGS_DEFAULT_THEME,
+} from '../storageStates'
+import { SETTINGS_FILE_NAME, PROJECT_SETTINGS_FILE_NAME } from 'lib/constants'
+import { getUtils, setup } from '../test-utils'
 import fsp from 'fs/promises'
-import { join } from 'path'
+import fs from 'node:fs'
+import path from 'path'
 import { CmdBarFixture } from './cmdBarFixture'
 import { EditorFixture } from './editorFixture'
 import { ToolbarFixture } from './toolbarFixture'
@@ -23,7 +41,7 @@ export class AuthenticatedApp {
   public readonly testInfo: TestInfo
   public readonly viewPortSize = { width: 1200, height: 500 }
   public electronApp: undefined | ElectronApplication
-  public dir: string = ''
+  public projectDirName: string = ''
 
   constructor(context: BrowserContext, page: Page, testInfo: TestInfo) {
     this.context = context
@@ -46,7 +64,7 @@ export class AuthenticatedApp {
   }
   getInputFile = (fileName: string) => {
     return fsp.readFile(
-      join('rust', 'kcl-lib', 'e2e', 'executor', 'inputs', fileName),
+      path.join('rust', 'kcl-lib', 'e2e', 'executor', 'inputs', fileName),
       'utf-8'
     )
   }
@@ -59,101 +77,300 @@ export interface Fixtures {
   scene: SceneFixture
   homePage: HomePageFixture
 }
-export class AuthenticatedTronApp {
-  public originalPage: Page
-  public page: Page
-  public browserContext: BrowserContext
-  public context: BrowserContext
-  public readonly testInfo: TestInfo
-  public electronApp: ElectronApplication | undefined
-  public readonly viewPortSize = { width: 1200, height: 500 }
-  public dir: string = ''
 
-  constructor(
-    browserContext: BrowserContext,
-    originalPage: Page,
-    testInfo: TestInfo
-  ) {
-    this.page = originalPage
-    this.originalPage = originalPage
-    this.browserContext = browserContext
-    // Will be overwritten in the initializer
-    this.context = browserContext
-    this.testInfo = testInfo
-  }
-  async initialise(
-    arg: {
-      fixtures: Partial<Fixtures>
-      folderSetupFn?: (projectDirName: string) => Promise<void>
-      cleanProjectDir?: boolean
-      appSettings?: DeepPartial<Settings>
-    } = { fixtures: {} }
-  ) {
-    const { electronApp, page, context, dir } = await setupElectron({
-      testInfo: this.testInfo,
-      folderSetupFn: arg.folderSetupFn,
-      cleanProjectDir: arg.cleanProjectDir,
-      appSettings: arg.appSettings,
-      viewport: this.viewPortSize,
+export class ElectronZoo {
+  public available: boolean = true
+  public electron!: ElectronApplication
+  public firstUrl = ''
+  public viewPortSize = { width: 1200, height: 500 }
+  public projectDirName = ''
+
+  public page!: Page
+  public context!: BrowserContext
+
+  constructor() {}
+
+  async makeAvailableAgain() {
+    // Help remote end by signaling we're done with the connection.
+    await this.page.evaluate(async () => {
+      return new Promise((resolve) => {
+        if (!window.engineCommandManager.engineConnection?.state?.type) {
+          return resolve(undefined)
+        }
+
+        window.engineCommandManager.tearDown()
+        // Keep polling (per js event tick) until state is Disconnected.
+        const checkDisconnected = () => {
+          // It's possible we never even created an engineConnection
+          // e.g. never left Projects view.
+          if (
+            window.engineCommandManager?.engineConnection?.state.type ===
+            'disconnected'
+          ) {
+            return resolve(undefined)
+          }
+          setTimeout(checkDisconnected, 0)
+        }
+        checkDisconnected()
+      })
     })
-    this.page = page
 
-    // These assignments "fix" some brokenness in the Playwright Workbench when
-    // running against electron applications.
-    // The timeline is still broken but failure screenshots work again.
-    this.context = context
-    // TODO: try to get this to work again for screenshots, but it messed with test ends when enabled
-    // Object.assign(this.browserContext, this.context)
+    await this.context.tracing.stopChunk({ path: 'trace.zip' })
 
-    this.electronApp = electronApp
-    this.dir = dir
+    // Only after cleanup we're ready.
+    this.available = true
+  }
 
-    // Easier to access throughout utils
-    this.page.dir = dir
+  async createInstanceIfMissing(testInfo: TestInfo) {
+    // Create or otherwise clear the folder.
+    this.projectDirName = testInfo.outputPath('electron-test-projects-dir')
 
-    // Setup localStorage, addCookies, reload
-    await setup(this.context, this.page, this.testInfo)
+    // We need to expose this in order for some tests that require folder
+    // creation and some code below.
+    const that = this
 
-    for (const key of unsafeTypedKeys(arg.fixtures)) {
-      const fixture = arg.fixtures[key]
-      if (
-        !fixture ||
-        fixture instanceof AuthenticatedApp ||
-        fixture instanceof AuthenticatedTronApp
-      )
-        continue
-      fixture.reConstruct(page)
+    const options = {
+      args: ['.', '--no-sandbox'],
+      env: {
+        ...process.env,
+        TEST_SETTINGS_FILE_KEY: this.projectDirName,
+        IS_PLAYWRIGHT: 'true',
+      },
+      ...(process.env.ELECTRON_OVERRIDE_DIST_PATH
+        ? {
+            executablePath:
+              process.env.ELECTRON_OVERRIDE_DIST_PATH + 'electron',
+          }
+        : {}),
+      ...(process.env.PLAYWRIGHT_RECORD_VIDEO
+        ? {
+            recordVideo: {
+              dir: testInfo.snapshotPath(),
+              size: this.viewPortSize,
+            },
+          }
+        : {}),
     }
+
+    // Do this once and then reuse window on subsequent calls.
+    if (!this.electron) {
+      this.electron = await electron.launch(options)
+      this.context = this.electron.context()
+      this.page = await this.electron.firstWindow()
+      await this.context.tracing.start({ screenshots: true, snapshots: true })
+    }
+
+    await this.context.tracing.startChunk()
+
+    await setup(this.context, this.page, testInfo)
+
+    await this.cleanProjectDir()
+
+    // Create a consistent way to resize the page across electron and web.
+    // (lee) I had to do everything in the book to make electron change its
+    // damn window size. I succeeded in making it consistently and reliably
+    // do it after a whole afternoon.
+    this.page.setBodyDimensions = async function (dims: {
+      width: number
+      height: number
+    }) {
+      await this.setViewportSize(dims)
+
+      await that.electron?.evaluateHandle(async ({ app }, dims) => {
+        // @ts-ignore sorry jon but see comment in main.ts why this is ignored
+        await app.resizeWindow(dims.width, dims.height)
+      }, dims)
+
+      return this.evaluate(async (dims: { width: number; height: number }) => {
+        await window.electron.resizeWindow(dims.width, dims.height)
+        window.document.body.style.width = dims.width + 'px'
+        window.document.body.style.height = dims.height + 'px'
+        window.document.documentElement.style.width = dims.width + 'px'
+        window.document.documentElement.style.height = dims.height + 'px'
+      }, dims)
+    }
+
+    await this.page.setBodyDimensions(this.viewPortSize)
+
+    this.context.folderSetupFn = async function (fn) {
+      return fn(that.projectDirName)
+        .then(() => that.page.reload())
+        .then(() => ({
+          dir: that.projectDirName,
+        }))
+    }
+
+    // We need to patch this because addInitScript will bind too late in our
+    // electron tests, never running. We need to call reload() after each call
+    // to guarantee it runs.
+    const oldContextAddInitScript = this.context.addInitScript
+    this.context.addInitScript = async function (a, b) {
+      // @ts-ignore pretty sure way out of tsc's type checking capabilities.
+      // This code works perfectly fine.
+      await oldContextAddInitScript.apply(this, [a, b])
+      await that.page.reload()
+    }
+
+    // No idea why we mix and match page and context's addInitScript but we do
+    const oldPageAddInitScript = this.page.addInitScript
+    this.page.addInitScript = async function (a: any, b: any) {
+      // @ts-ignore pretty sure way out of tsc's type checking capabilities.
+      // This code works perfectly fine.
+      await oldPageAddInitScript.apply(this, [a, b])
+      await that.page.reload()
+    }
+
+    if (!this.firstUrl) {
+      await this.page.getByText('Your Projects').count()
+      this.firstUrl = this.page.url()
+    }
+
+    // Due to the app controlling its own window context we need to inject new
+    // options and context here.
+    // NOTE TO LEE: Seems to destroy page context when calling an electron loadURL.
+    // await tronApp.electronApp.evaluate(({ app }) => {
+    //   return app.reuseWindowForTest();
+    // });
+
+    await this.electron?.evaluate(({ app }, projectDirName) => {
+      // @ts-ignore can't declaration merge see main.ts
+      app.testProperty['TEST_SETTINGS_FILE_KEY'] = projectDirName
+    }, this.projectDirName)
+
+    // Always start at the root view
+    await this.page.goto(this.firstUrl)
+
+    // Force a hard reload, destroying the stream and other state
+    await this.page.reload()
   }
 
-  close = async () => {
-    await this.electronApp?.close?.()
+  async cleanProjectDir(appSettings?: DeepPartial<Settings>) {
+    try {
+      if (fs.existsSync(this.projectDirName)) {
+        await fsp.rm(this.projectDirName, { recursive: true })
+      }
+    } catch (e) {
+      console.error(e)
+    }
+
+    try {
+      await fsp.mkdir(this.projectDirName)
+    } catch (e) {
+      // Not a problem if it already exists.
+    }
+
+    const tempSettingsFilePath = path.join(
+      this.projectDirName,
+      SETTINGS_FILE_NAME
+    )
+
+    let settingsOverridesToml = ''
+
+    if (appSettings) {
+      settingsOverridesToml = TOML.stringify({
+        // @ts-expect-error
+        settings: {
+          ...TEST_SETTINGS,
+          ...appSettings,
+          app: {
+            ...TEST_SETTINGS.app,
+            project_directory: this.projectDirName,
+            ...appSettings.app,
+          },
+        },
+      })
+    } else {
+      settingsOverridesToml = TOML.stringify({
+        // @ts-expect-error
+        settings: {
+          ...TEST_SETTINGS,
+          app: {
+            ...TEST_SETTINGS.app,
+            project_directory: this.projectDirName,
+          },
+        },
+      })
+    }
+    await fsp.writeFile(tempSettingsFilePath, settingsOverridesToml)
   }
-  debugPause = () =>
-    new Promise(() => {
-      console.log('UN-RESOLVING PROMISE')
-    })
 }
 
-export const fixtures = {
-  cmdBar: async ({ page }: { page: Page }, use: any) => {
-    // eslint-disable-next-line react-hooks/rules-of-hooks
+// If yee encounter this, please try to type it.
+type FnUse = any
+
+const fixturesForElectron = {
+  page: async (
+    { tronApp }: { tronApp: ElectronZoo },
+    use: FnUse,
+    testInfo: TestInfo
+  ) => {
+    await tronApp.createInstanceIfMissing(testInfo)
+    await use(tronApp.page)
+    await tronApp?.makeAvailableAgain()
+  },
+  context: async (
+    { tronApp }: { tronApp: ElectronZoo },
+    use: FnUse,
+    testInfo: TestInfo
+  ) => {
+    await tronApp.createInstanceIfMissing(testInfo)
+    await use(tronApp.context)
+  },
+}
+
+const fixturesForWeb = {
+  page: async (
+    { page, context }: { page: Page; context: BrowserContext },
+    use: FnUse,
+    testInfo: TestInfo
+  ) => {
+    page.setBodyDimensions = page.setViewportSize
+
+    // We do the same thing in ElectronZoo. addInitScript simply doesn't fire
+    // at the correct time, so we reload the page and it fires appropriately.
+    const oldPageAddInitScript = page.addInitScript
+    page.addInitScript = async function (...args) {
+      // @ts-expect-error
+      await oldPageAddInitScript.apply(this, args)
+      await page.reload()
+    }
+
+    const oldContextAddInitScript = context.addInitScript
+    context.addInitScript = async function (...args) {
+      // @ts-expect-error
+      await oldContextAddInitScript.apply(this, args)
+      await page.reload()
+    }
+
+    const webApp = new AuthenticatedApp(context, page, testInfo)
+    await webApp.initialise()
+
+    await use(page)
+  },
+}
+
+const fixturesBasedOnProcessEnvPlatform = {
+  cmdBar: async ({ page }: { page: Page }, use: FnUse) => {
     await use(new CmdBarFixture(page))
   },
-  editor: async ({ page }: { page: Page }, use: any) => {
-    // eslint-disable-next-line react-hooks/rules-of-hooks
+  editor: async ({ page }: { page: Page }, use: FnUse) => {
     await use(new EditorFixture(page))
   },
-  toolbar: async ({ page }: { page: Page }, use: any) => {
-    // eslint-disable-next-line react-hooks/rules-of-hooks
+  toolbar: async ({ page }: { page: Page }, use: FnUse) => {
     await use(new ToolbarFixture(page))
   },
-  scene: async ({ page }: { page: Page }, use: any) => {
-    // eslint-disable-next-line react-hooks/rules-of-hooks
+  scene: async ({ page }: { page: Page }, use: FnUse) => {
     await use(new SceneFixture(page))
   },
-  homePage: async ({ page }: { page: Page }, use: any) => {
-    // eslint-disable-next-line react-hooks/rules-of-hooks
+  homePage: async ({ page }: { page: Page }, use: FnUse) => {
     await use(new HomePageFixture(page))
   },
 }
+
+if (process.env.PLATFORM === 'web') {
+  Object.assign(fixturesBasedOnProcessEnvPlatform, fixturesForWeb)
+} else {
+  Object.assign(fixturesBasedOnProcessEnvPlatform, fixturesForElectron)
+}
+
+export { fixturesBasedOnProcessEnvPlatform }
diff --git a/e2e/playwright/fixtures/homePageFixture.ts b/e2e/playwright/fixtures/homePageFixture.ts
index 7606eed44..e6caf43a8 100644
--- a/e2e/playwright/fixtures/homePageFixture.ts
+++ b/e2e/playwright/fixtures/homePageFixture.ts
@@ -27,10 +27,6 @@ export class HomePageFixture {
 
   constructor(page: Page) {
     this.page = page
-    this.reConstruct(page)
-  }
-  reConstruct = (page: Page) => {
-    this.page = page
 
     this.projectSection = this.page.getByTestId('home-section')
 
@@ -96,8 +92,12 @@ export class HomePageFixture {
     }
   }
 
-  createAndGoToProject = async (projectTitle = 'project-$nnn') => {
+  projectsLoaded = async () => {
     await expect(this.projectSection).not.toHaveText('Loading your Projects...')
+  }
+
+  createAndGoToProject = async (projectTitle = 'project-$nnn') => {
+    await this.projectsLoaded()
     await this.projectButtonNew.click()
     await this.projectTextName.click()
     await this.projectTextName.fill(projectTitle)
diff --git a/e2e/playwright/fixtures/sceneFixture.ts b/e2e/playwright/fixtures/sceneFixture.ts
index 73ec11345..d7189a672 100644
--- a/e2e/playwright/fixtures/sceneFixture.ts
+++ b/e2e/playwright/fixtures/sceneFixture.ts
@@ -53,7 +53,12 @@ export class SceneFixture {
 
   constructor(page: Page) {
     this.page = page
-    this.reConstruct(page)
+    this.streamWrapper = page.getByTestId('stream')
+    this.networkToggleConnected = page.getByTestId('network-toggle-ok')
+    this.loadingIndicator = this.streamWrapper.getByTestId('loading')
+    this.startEditSketchBtn = page
+      .getByRole('button', { name: 'Start Sketch' })
+      .or(page.getByRole('button', { name: 'Edit Sketch' }))
   }
   private _serialiseScene = async (): Promise<SceneSerialised> => {
     const camera = await this.getCameraInfo()
@@ -72,17 +77,6 @@ export class SceneFixture {
       .toEqual(expected)
   }
 
-  reConstruct = (page: Page) => {
-    this.page = page
-
-    this.streamWrapper = page.getByTestId('stream')
-    this.networkToggleConnected = page.getByTestId('network-toggle-ok')
-    this.loadingIndicator = this.streamWrapper.getByTestId('loading')
-    this.startEditSketchBtn = page
-      .getByRole('button', { name: 'Start Sketch' })
-      .or(page.getByRole('button', { name: 'Edit Sketch' }))
-  }
-
   makeMouseHelpers = (
     x: number,
     y: number,
@@ -253,7 +247,7 @@ export class SceneFixture {
 
     await u.openDebugPanel()
     await u.expectCmdLog('[data-message-type="execution-done"]')
-    await u.clearAndCloseDebugPanel()
+    await u.closeDebugPanel()
 
     await this.waitForExecutionDone()
     await expect(this.startEditSketchBtn).not.toBeDisabled()
diff --git a/e2e/playwright/fixtures/toolbarFixture.ts b/e2e/playwright/fixtures/toolbarFixture.ts
index 6ab60f5d3..892a5775e 100644
--- a/e2e/playwright/fixtures/toolbarFixture.ts
+++ b/e2e/playwright/fixtures/toolbarFixture.ts
@@ -37,13 +37,12 @@ export class ToolbarFixture {
   featureTreeId = 'feature-tree' as const
   /** The pane element for the Feature Tree */
   featureTreePane!: Locator
+  gizmo!: Locator
+  gizmoDisabled!: Locator
 
   constructor(page: Page) {
     this.page = page
-    this.reConstruct(page)
-  }
-  reConstruct = (page: Page) => {
-    this.page = page
+
     this.extrudeButton = page.getByTestId('extrude')
     this.loftButton = page.getByTestId('loft')
     this.sweepButton = page.getByTestId('sweep')
@@ -67,6 +66,13 @@ export class ToolbarFixture {
     this.filePane = page.locator('#files-pane')
     this.featureTreePane = page.locator('#feature-tree-pane')
     this.fileCreateToast = page.getByText('Successfully created')
+
+    // Note to test writers: having two locators like this is preferable to one
+    // which changes another el property because it means our test "signal" is
+    // completely decoupled from the elements themselves. It means the same
+    // element or two different elements can represent these states.
+    this.gizmo = page.getByTestId('gizmo')
+    this.gizmoDisabled = page.getByTestId('gizmo-disabled')
   }
 
   get editSketchBtn() {
@@ -86,6 +92,18 @@ export class ToolbarFixture {
   startSketchPlaneSelection = async () =>
     doAndWaitForImageDiff(this.page, () => this.startSketchBtn.click(), 500)
 
+  waitUntilSketchingReady = async () => {
+    await expect(this.gizmoDisabled).toBeVisible()
+  }
+
+  startSketchThenCallbackThenWaitUntilReady = async (
+    cb: () => Promise<void>
+  ) => {
+    await this.startSketchBtn.click()
+    await cb()
+    await this.waitUntilSketchingReady()
+  }
+
   exitSketch = async () => {
     await this.exitSketchBtn.click()
     await expect(
diff --git a/e2e/playwright/onboarding-tests.spec.ts b/e2e/playwright/onboarding-tests.spec.ts
index 6343f6f8e..8be152a44 100644
--- a/e2e/playwright/onboarding-tests.spec.ts
+++ b/e2e/playwright/onboarding-tests.spec.ts
@@ -21,58 +21,54 @@ import { expectPixelColor } from './fixtures/sceneFixture'
 // we must set it to empty for the tests where we want to see the onboarding immediately.
 
 test.describe('Onboarding tests', () => {
-  test(
-    'Onboarding code is shown in the editor',
-    {
-      appSettings: {
-        app: {
-          onboarding_status: '',
-        },
-      },
-      cleanProjectDir: true,
-    },
-    async ({ page, homePage }) => {
-      const u = await getUtils(page)
-      await page.setBodyDimensions({ width: 1200, height: 500 })
-      await homePage.goToModelingScene()
-
-      // Test that the onboarding pane loaded
-      await expect(
-        page.getByText('Welcome to Modeling App! This')
-      ).toBeVisible()
-
-      // Test that the onboarding pane loaded
-      await expect(
-        page.getByText('Welcome to Modeling App! This')
-      ).toBeVisible()
-
-      // *and* that the code is shown in the editor
-      await expect(page.locator('.cm-content')).toContainText(
-        '// Shelf Bracket'
-      )
-
-      // Make sure the model loaded
-      const XYPlanePoint = { x: 774, y: 116 } as const
-      const modelColor: [number, number, number] = [45, 45, 45]
-      await page.mouse.move(XYPlanePoint.x, XYPlanePoint.y)
-      expect(await u.getGreatestPixDiff(XYPlanePoint, modelColor)).toBeLessThan(
-        8
-      )
+  test('Onboarding code is shown in the editor', async ({
+    page,
+    homePage,
+    tronApp,
+  }) => {
+    if (!tronApp) {
+      fail()
     }
-  )
+    await tronApp.cleanProjectDir({
+      app: {
+        onboarding_status: '',
+      },
+    })
+
+    const u = await getUtils(page)
+    await page.setBodyDimensions({ width: 1200, height: 500 })
+    await homePage.goToModelingScene()
+
+    // Test that the onboarding pane loaded
+    await expect(page.getByText('Welcome to Modeling App! This')).toBeVisible()
+
+    // Test that the onboarding pane loaded
+    await expect(page.getByText('Welcome to Modeling App! This')).toBeVisible()
+
+    // *and* that the code is shown in the editor
+    await expect(page.locator('.cm-content')).toContainText('// Shelf Bracket')
+
+    // Make sure the model loaded
+    const XYPlanePoint = { x: 774, y: 116 } as const
+    const modelColor: [number, number, number] = [45, 45, 45]
+    await page.mouse.move(XYPlanePoint.x, XYPlanePoint.y)
+    expect(await u.getGreatestPixDiff(XYPlanePoint, modelColor)).toBeLessThan(8)
+  })
 
   test(
     'Desktop: fresh onboarding executes and loads',
     {
       tag: '@electron',
-      appSettings: {
+    },
+    async ({ page, tronApp }) => {
+      if (!tronApp) {
+        fail()
+      }
+      await tronApp.cleanProjectDir({
         app: {
           onboarding_status: '',
         },
-      },
-      cleanProjectDir: true,
-    },
-    async ({ page }) => {
+      })
       const u = await getUtils(page)
 
       const viewportSize = { width: 1200, height: 500 }
@@ -107,223 +103,235 @@ test.describe('Onboarding tests', () => {
     }
   )
 
-  test(
-    'Code resets after confirmation',
-    {
-      cleanProjectDir: true,
-    },
-    async ({ context, page, homePage }) => {
-      const initialCode = `sketch001 = startSketchOn('XZ')`
+  test('Code resets after confirmation', async ({
+    context,
+    page,
+    homePage,
+    tronApp,
+    scene,
+    cmdBar,
+  }) => {
+    if (!tronApp) {
+      fail()
+    }
+    await tronApp.cleanProjectDir()
 
-      // Load the page up with some code so we see the confirmation warning
-      // when we go to replay onboarding
-      await context.addInitScript((code) => {
-        localStorage.setItem('persistCode', code)
-      }, initialCode)
+    const initialCode = `sketch001 = startSketchOn('XZ')`
 
-      await page.setBodyDimensions({ width: 1200, height: 500 })
-      await homePage.goToModelingScene()
+    // Load the page up with some code so we see the confirmation warning
+    // when we go to replay onboarding
+    await page.addInitScript((code) => {
+      localStorage.setItem('persistCode', code)
+    }, initialCode)
 
-      // Replay the onboarding
-      await page.getByRole('link', { name: 'Settings' }).last().click()
-      const replayButton = page.getByRole('button', {
-        name: 'Replay onboarding',
-      })
-      await expect(replayButton).toBeVisible()
-      await replayButton.click()
+    await page.setBodyDimensions({ width: 1200, height: 500 })
+    await homePage.goToModelingScene()
+    await scene.connectionEstablished()
 
-      // Ensure we see the warning, and that the code has not yet updated
-      await expect(page.getByText('Would you like to create')).toBeVisible()
-      await expect(page.locator('.cm-content')).toHaveText(initialCode)
+    // Replay the onboarding
+    await page.getByRole('link', { name: 'Settings' }).last().click()
+    const replayButton = page.getByRole('button', {
+      name: 'Replay onboarding',
+    })
+    await expect(replayButton).toBeVisible()
+    await replayButton.click()
 
-      const nextButton = page.getByTestId('onboarding-next')
+    // Ensure we see the warning, and that the code has not yet updated
+    await expect(page.getByText('Would you like to create')).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(initialCode)
+
+    const nextButton = page.getByTestId('onboarding-next')
+    await nextButton.hover()
+    await nextButton.click()
+
+    // Ensure we see the introduction and that the code has been reset
+    await expect(page.getByText('Welcome to Modeling App!')).toBeVisible()
+    await expect(page.locator('.cm-content')).toContainText('// Shelf Bracket')
+
+    // There used to be old code here that checked if we stored the reset
+    // code into localStorage but that isn't the case on desktop. It gets
+    // saved to the file system, which we have other tests for.
+  })
+
+  test('Click through each onboarding step and back', async ({
+    context,
+    page,
+    homePage,
+    tronApp,
+  }) => {
+    if (!tronApp) {
+      fail()
+    }
+    await tronApp.cleanProjectDir({
+      app: {
+        onboarding_status: '',
+      },
+    })
+    // Override beforeEach test setup
+    await context.addInitScript(
+      async ({ settingsKey, settings }) => {
+        // Give no initial code, so that the onboarding start is shown immediately
+        localStorage.setItem('persistCode', '')
+        localStorage.setItem(settingsKey, settings)
+      },
+      {
+        settingsKey: TEST_SETTINGS_KEY,
+        settings: settingsToToml({
+          settings: TEST_SETTINGS_ONBOARDING_START,
+        }),
+      }
+    )
+
+    await page.setBodyDimensions({ width: 1200, height: 1080 })
+    await homePage.goToModelingScene()
+
+    // Test that the onboarding pane loaded
+    await expect(page.getByText('Welcome to Modeling App! This')).toBeVisible()
+
+    const nextButton = page.getByTestId('onboarding-next')
+    const prevButton = page.getByTestId('onboarding-prev')
+
+    while ((await nextButton.innerText()) !== 'Finish') {
       await nextButton.hover()
       await nextButton.click()
-
-      // Ensure we see the introduction and that the code has been reset
-      await expect(page.getByText('Welcome to Modeling App!')).toBeVisible()
-      await expect(page.locator('.cm-content')).toContainText(
-        '// Shelf Bracket'
-      )
-
-      // There used to be old code here that checked if we stored the reset
-      // code into localStorage but that isn't the case on desktop. It gets
-      // saved to the file system, which we have other tests for.
     }
-  )
 
-  test(
-    'Click through each onboarding step and back',
-    {
-      appSettings: {
-        app: {
-          onboarding_status: '',
-        },
-      },
-    },
-    async ({ context, page, homePage }) => {
-      // Override beforeEach test setup
-      await context.addInitScript(
-        async ({ settingsKey, settings }) => {
-          // Give no initial code, so that the onboarding start is shown immediately
-          localStorage.setItem('persistCode', '')
-          localStorage.setItem(settingsKey, settings)
-        },
-        {
-          settingsKey: TEST_SETTINGS_KEY,
-          settings: settingsToToml({
-            settings: TEST_SETTINGS_ONBOARDING_START,
-          }),
-        }
-      )
-
-      await page.setBodyDimensions({ width: 1200, height: 1080 })
-      await homePage.goToModelingScene()
-
-      // Test that the onboarding pane loaded
-      await expect(
-        page.getByText('Welcome to Modeling App! This')
-      ).toBeVisible()
-
-      const nextButton = page.getByTestId('onboarding-next')
-      const prevButton = page.getByTestId('onboarding-prev')
-
-      while ((await nextButton.innerText()) !== 'Finish') {
-        await nextButton.hover()
-        await nextButton.click()
-      }
-
-      while ((await prevButton.innerText()) !== 'Dismiss') {
-        await prevButton.hover()
-        await prevButton.click()
-      }
-
-      // Dismiss the onboarding
+    while ((await prevButton.innerText()) !== 'Dismiss') {
       await prevButton.hover()
       await prevButton.click()
-
-      // Test that the onboarding pane is gone
-      await expect(page.getByTestId('onboarding-content')).not.toBeVisible()
-      await expect.poll(() => page.url()).not.toContain('/onboarding')
     }
-  )
 
-  test(
-    'Onboarding redirects and code updating',
-    {
-      appSettings: {
-        app: {
-          onboarding_status: '/export',
-        },
+    // Dismiss the onboarding
+    await prevButton.hover()
+    await prevButton.click()
+
+    // Test that the onboarding pane is gone
+    await expect(page.getByTestId('onboarding-content')).not.toBeVisible()
+    await expect.poll(() => page.url()).not.toContain('/onboarding')
+  })
+
+  test('Onboarding redirects and code updating', async ({
+    context,
+    page,
+    homePage,
+    tronApp,
+  }) => {
+    if (!tronApp) {
+      fail()
+    }
+    await tronApp.cleanProjectDir({
+      app: {
+        onboarding_status: '/export',
       },
-      cleanProjectDir: true,
-    },
-    async ({ context, page, homePage }) => {
-      const originalCode = 'sigmaAllow = 15000'
+    })
 
-      // Override beforeEach test setup
-      await context.addInitScript(
-        async ({ settingsKey, settings }) => {
-          // Give some initial code, so we can test that it's cleared
-          localStorage.setItem('persistCode', originalCode)
-          localStorage.setItem(settingsKey, settings)
-        },
-        {
-          settingsKey: TEST_SETTINGS_KEY,
-          settings: settingsToToml({
-            settings: TEST_SETTINGS_ONBOARDING_EXPORT,
-          }),
-        }
-      )
+    const originalCode = 'sigmaAllow = 15000'
 
-      await page.setBodyDimensions({ width: 1200, height: 500 })
-      await homePage.goToModelingScene()
-
-      // Test that the redirect happened
-      await expect.poll(() => page.url()).toContain('/onboarding/export')
-
-      // Test that you come back to this page when you refresh
-      await page.reload()
-      await expect.poll(() => page.url()).toContain('/onboarding/export')
-
-      // Test that the code changes when you advance to the next step
-      await page.getByTestId('onboarding-next').hover()
-      await page.getByTestId('onboarding-next').click()
-
-      // Test that the onboarding pane loaded
-      const title = page.locator('[data-testid="onboarding-content"]')
-      await expect(title).toBeAttached()
-
-      await expect(page.locator('.cm-content')).not.toHaveText(originalCode)
-
-      // Test that the code is not empty when you click on the next step
-      await page.locator('[data-testid="onboarding-next"]').hover()
-      await page.locator('[data-testid="onboarding-next"]').click()
-      await expect(page.locator('.cm-content')).toHaveText(/.+/)
-    }
-  )
-
-  test(
-    'Onboarding code gets reset to demo on Interactive Numbers step',
-    {
-      appSettings: {
-        app: {
-          onboarding_status: '/parametric-modeling',
-        },
+    // Override beforeEach test setup
+    await context.addInitScript(
+      async ({ settingsKey, settings }) => {
+        // Give some initial code, so we can test that it's cleared
+        localStorage.setItem('persistCode', originalCode)
+        localStorage.setItem(settingsKey, settings)
       },
-      cleanProjectDir: true,
-    },
+      {
+        settingsKey: TEST_SETTINGS_KEY,
+        settings: settingsToToml({
+          settings: TEST_SETTINGS_ONBOARDING_EXPORT,
+        }),
+      }
+    )
 
-    async ({ page, homePage }) => {
-      const u = await getUtils(page)
-      const badCode = `// This is bad code we shouldn't see`
+    await page.setBodyDimensions({ width: 1200, height: 500 })
+    await homePage.goToModelingScene()
 
-      await page.setBodyDimensions({ width: 1200, height: 1080 })
-      await homePage.goToModelingScene()
+    // Test that the redirect happened
+    await expect.poll(() => page.url()).toContain('/onboarding/export')
 
-      await expect
-        .poll(() => page.url())
-        .toContain(onboardingPaths.PARAMETRIC_MODELING)
+    // Test that you come back to this page when you refresh
+    await page.reload()
+    await expect.poll(() => page.url()).toContain('/onboarding/export')
 
-      const bracketNoNewLines = bracket.replace(/\n/g, '')
+    // Test that the code changes when you advance to the next step
+    await page.getByTestId('onboarding-next').hover()
+    await page.getByTestId('onboarding-next').click()
 
-      // Check the code got reset on load
-      await expect(page.locator('#code-pane')).toBeVisible()
-      await expect(u.codeLocator).toHaveText(bracketNoNewLines, {
-        timeout: 10_000,
-      })
+    // Test that the onboarding pane loaded
+    const title = page.locator('[data-testid="onboarding-content"]')
+    await expect(title).toBeAttached()
 
-      // Mess with the code again
-      await u.codeLocator.selectText()
-      await u.codeLocator.fill(badCode)
-      await expect(u.codeLocator).toHaveText(badCode)
+    await expect(page.locator('.cm-content')).not.toHaveText(originalCode)
 
-      // Click to the next step
-      await page.locator('[data-testid="onboarding-next"]').hover()
-      await page.locator('[data-testid="onboarding-next"]').click()
-      await page.waitForURL('**' + onboardingPaths.INTERACTIVE_NUMBERS, {
-        waitUntil: 'domcontentloaded',
-      })
+    // Test that the code is not empty when you click on the next step
+    await page.locator('[data-testid="onboarding-next"]').hover()
+    await page.locator('[data-testid="onboarding-next"]').click()
+    await expect(page.locator('.cm-content')).toHaveText(/.+/)
+  })
 
-      // Check that the code has been reset
-      await expect(u.codeLocator).toHaveText(bracketNoNewLines)
+  test('Onboarding code gets reset to demo on Interactive Numbers step', async ({
+    page,
+    homePage,
+    tronApp,
+  }) => {
+    if (!tronApp) {
+      fail()
     }
-  )
+    await tronApp.cleanProjectDir({
+      app: {
+        onboarding_status: '/parametric-modeling',
+      },
+    })
+
+    const u = await getUtils(page)
+    const badCode = `// This is bad code we shouldn't see`
+
+    await page.setBodyDimensions({ width: 1200, height: 1080 })
+    await homePage.goToModelingScene()
+
+    await expect
+      .poll(() => page.url())
+      .toContain(onboardingPaths.PARAMETRIC_MODELING)
+
+    const bracketNoNewLines = bracket.replace(/\n/g, '')
+
+    // Check the code got reset on load
+    await expect(page.locator('#code-pane')).toBeVisible()
+    await expect(u.codeLocator).toHaveText(bracketNoNewLines, {
+      timeout: 10_000,
+    })
+
+    // Mess with the code again
+    await u.codeLocator.selectText()
+    await u.codeLocator.fill(badCode)
+    await expect(u.codeLocator).toHaveText(badCode)
+
+    // Click to the next step
+    await page.locator('[data-testid="onboarding-next"]').hover()
+    await page.locator('[data-testid="onboarding-next"]').click()
+    await page.waitForURL('**' + onboardingPaths.INTERACTIVE_NUMBERS, {
+      waitUntil: 'domcontentloaded',
+    })
+
+    // Check that the code has been reset
+    await expect(u.codeLocator).toHaveText(bracketNoNewLines)
+  })
 
   // (lee) The two avatar tests are weird because even on main, we don't have
   // anything to do with the avatar inside the onboarding test. Due to the
   // low impact of an avatar not showing I'm changing this to fixme.
   test.fixme(
     'Avatar text updates depending on image load success',
-    {
-      appSettings: {
+    async ({ context, page, homePage, tronApp }) => {
+      if (!tronApp) {
+        fail()
+      }
+
+      await tronApp.cleanProjectDir({
         app: {
           onboarding_status: '',
         },
-      },
-      cleanProjectDir: true,
-    },
-    async ({ context, page, homePage }) => {
+      })
+
       // Override beforeEach test setup
       await context.addInitScript(
         async ({ settingsKey, settings }) => {
@@ -388,15 +396,16 @@ test.describe('Onboarding tests', () => {
 
   test.fixme(
     "Avatar text doesn't mention avatar when no avatar",
-    {
-      appSettings: {
+    async ({ context, page, homePage, tronApp }) => {
+      if (!tronApp) {
+        fail()
+      }
+
+      await tronApp.cleanProjectDir({
         app: {
           onboarding_status: '',
         },
-      },
-      cleanProjectDir: true,
-    },
-    async ({ context, page, homePage }) => {
+      })
       // Override beforeEach test setup
       await context.addInitScript(
         async ({ settingsKey, settings }) => {
@@ -444,15 +453,17 @@ test.describe('Onboarding tests', () => {
 
 test.fixme(
   'Restarting onboarding on desktop takes one attempt',
-  {
-    appSettings: {
+  async ({ context, page, tronApp }) => {
+    if (!tronApp) {
+      fail()
+    }
+
+    await tronApp.cleanProjectDir({
       app: {
         onboarding_status: 'dismissed',
       },
-    },
-    cleanProjectDir: true,
-  },
-  async ({ context, page }) => {
+    })
+
     await context.folderSetupFn(async (dir) => {
       const routerTemplateDir = join(dir, 'router-template-slate')
       await fsp.mkdir(routerTemplateDir, { recursive: true })
diff --git a/e2e/playwright/point-click.spec.ts b/e2e/playwright/point-click.spec.ts
index 139898784..7bb57ce4a 100644
--- a/e2e/playwright/point-click.spec.ts
+++ b/e2e/playwright/point-click.spec.ts
@@ -1,4 +1,5 @@
-import { test, expect, Page } from './zoo-test'
+import { Page } from '@playwright/test'
+import { test, expect } from './zoo-test'
 import { EditorFixture } from './fixtures/editorFixture'
 import { SceneFixture } from './fixtures/sceneFixture'
 import { ToolbarFixture } from './fixtures/toolbarFixture'
diff --git a/e2e/playwright/projects.spec.ts b/e2e/playwright/projects.spec.ts
index 07397a8b9..e32b582b4 100644
--- a/e2e/playwright/projects.spec.ts
+++ b/e2e/playwright/projects.spec.ts
@@ -163,7 +163,7 @@ test(
         .poll(() => u.getGreatestPixDiff(pointOnModel, [85, 85, 85]), {
           timeout: 10_000,
         })
-        .toBeLessThan(15)
+        .toBeLessThan(20)
     })
 
     await test.step('Clicking the logo takes us back to the projects page / home', async () => {
@@ -464,7 +464,11 @@ test.describe('Can export from electron app', () => {
     test(
       `Can export using ${method}`,
       { tag: ['@electron', '@skipLocalEngine'] },
-      async ({ context, page }, testInfo) => {
+      async ({ context, page, tronApp }, testInfo) => {
+        if (!tronApp) {
+          fail()
+        }
+
         await context.folderSetupFn(async (dir) => {
           const bracketDir = path.join(dir, 'bracket')
           await fsp.mkdir(bracketDir, { recursive: true })
@@ -516,6 +520,7 @@ test.describe('Can export from electron app', () => {
                 storage: 'embedded',
                 presentation: 'pretty',
               },
+              tronApp.projectDirName,
               page,
               method
             )
@@ -523,7 +528,7 @@ test.describe('Can export from electron app', () => {
         })
 
         const filepath = path.resolve(
-          getPlaywrightDownloadDir(page),
+          getPlaywrightDownloadDir(tronApp.projectDirName),
           'main.gltf'
         )
 
@@ -781,6 +786,7 @@ test(
     page.on('console', console.log)
 
     await expect(page.getByText('router-template-slate')).toBeVisible()
+    await expect(page.getByText('Loading your Projects...')).not.toBeVisible()
     await expect(page.getByText('Your Projects')).toBeVisible()
 
     await page.keyboard.press('Delete')
@@ -858,7 +864,7 @@ test.describe(`Project management commands`, () => {
   test(
     `Delete from project page`,
     { tag: '@electron' },
-    async ({ context, page }, testInfo) => {
+    async ({ context, page, scene, cmdBar }, testInfo) => {
       const projectName = `my_project_to_delete`
       await context.folderSetupFn(async (dir) => {
         await fsp.mkdir(`${dir}/${projectName}`, { recursive: true })
@@ -887,6 +893,8 @@ test.describe(`Project management commands`, () => {
 
         await projectHomeLink.click()
         await u.waitForPageLoad()
+        await scene.connectionEstablished()
+        await scene.settled(cmdBar)
       })
 
       await test.step(`Run delete command via command palette`, async () => {
@@ -909,7 +917,7 @@ test.describe(`Project management commands`, () => {
   test(
     `Rename from home page`,
     { tag: '@electron' },
-    async ({ context, page }, testInfo) => {
+    async ({ context, page, homePage }, testInfo) => {
       const projectName = `my_project_to_rename`
       await context.folderSetupFn(async (dir) => {
         await fsp.mkdir(`${dir}/${projectName}`, { recursive: true })
@@ -936,6 +944,7 @@ test.describe(`Project management commands`, () => {
       await test.step(`Setup`, async () => {
         await page.setBodyDimensions({ width: 1200, height: 500 })
         page.on('console', console.log)
+        await homePage.projectsLoaded()
         await expect(projectHomeLink).toBeVisible()
       })
 
@@ -1682,7 +1691,11 @@ test(
 test(
   'You can change the root projects directory and nothing is lost',
   { tag: '@electron' },
-  async ({ context, page, electronApp }, testInfo) => {
+  async ({ context, page, tronApp, homePage }, testInfo) => {
+    if (!tronApp) {
+      fail()
+    }
+
     await context.folderSetupFn(async (dir) => {
       await Promise.all([
         fsp.mkdir(`${dir}/router-template-slate`, { recursive: true }),
@@ -1712,6 +1725,8 @@ test(
       await fsp.rm(newProjectDirName, { recursive: true })
     }
 
+    await homePage.projectsLoaded()
+
     await test.step('We can change the root project directory', async () => {
       // expect to see the project directory settings link
       await expect(
@@ -1725,7 +1740,7 @@ test(
         .locator('section#projectDirectory input')
         .inputValue()
 
-      const handleFile = electronApp?.evaluate(
+      const handleFile = tronApp.electron.evaluate(
         async ({ dialog }, filePaths) => {
           dialog.showOpenDialog = () =>
             Promise.resolve({ canceled: false, filePaths })
@@ -1741,6 +1756,8 @@ test(
 
       await page.getByTestId('settings-close-button').click()
 
+      await homePage.projectsLoaded()
+
       await expect(page.getByText('No Projects found')).toBeVisible()
       await createProject({ name: 'project-000', page, returnHome: true })
       await expect(
@@ -1755,7 +1772,7 @@ test(
 
       await page.getByTestId('project-directory-settings-link').click()
 
-      const handleFile = electronApp?.evaluate(
+      const handleFile = tronApp.electron.evaluate(
         async ({ dialog }, filePaths) => {
           dialog.showOpenDialog = () =>
             Promise.resolve({ canceled: false, filePaths })
@@ -1767,6 +1784,7 @@ test(
       await page.getByTestId('project-directory-button').click()
       await handleFile
 
+      await homePage.projectsLoaded()
       await expect(page.locator('section#projectDirectory input')).toHaveValue(
         originalProjectDirName
       )
@@ -2000,8 +2018,8 @@ test(
 
 test(
   'Settings persist across restarts',
-  { tag: '@electron', cleanProjectDir: true },
-  async ({ page }, testInfo) => {
+  { tag: '@electron' },
+  async ({ page, scene, cmdBar }, testInfo) => {
     await test.step('We can change a user setting like theme', async () => {
       await page.setBodyDimensions({ width: 1200, height: 500 })
 
@@ -2014,6 +2032,10 @@ test(
       await expect(page.getByTestId('app-theme')).toHaveValue('dark')
 
       await page.getByTestId('app-theme').selectOption('light')
+      await expect(page.getByTestId('app-theme')).toHaveValue('light')
+
+      // Give time to system for writing to a persistent store
+      await page.waitForTimeout(1000)
     })
 
     await test.step('Starting the app again and we can see the same theme', async () => {
diff --git a/e2e/playwright/regression-tests.spec.ts b/e2e/playwright/regression-tests.spec.ts
index 6de674d26..af3747f81 100644
--- a/e2e/playwright/regression-tests.spec.ts
+++ b/e2e/playwright/regression-tests.spec.ts
@@ -1,4 +1,5 @@
-import { test, expect, Page } from './zoo-test'
+import { Page } from '@playwright/test'
+import { test, expect } from './zoo-test'
 import path from 'path'
 import * as fsp from 'fs/promises'
 import { getUtils, executorInputPath } from './test-utils'
diff --git a/e2e/playwright/sketch-tests.spec.ts b/e2e/playwright/sketch-tests.spec.ts
index f9660dbb3..5ac703464 100644
--- a/e2e/playwright/sketch-tests.spec.ts
+++ b/e2e/playwright/sketch-tests.spec.ts
@@ -1,4 +1,5 @@
-import { test, expect, Page } from './zoo-test'
+import { Page } from '@playwright/test'
+import { test, expect } from './zoo-test'
 import fs from 'node:fs/promises'
 import path from 'node:path'
 import { HomePageFixture } from './fixtures/homePageFixture'
@@ -2153,6 +2154,8 @@ extrude001 = extrude(profile003, length = 5)
 
     await page.setBodyDimensions({ width: 1000, height: 500 })
     await homePage.goToModelingScene()
+
+    await page.waitForTimeout(5000)
     await expect(
       page.getByRole('button', { name: 'Start Sketch' })
     ).not.toBeDisabled()
@@ -2165,7 +2168,7 @@ extrude001 = extrude(profile003, length = 5)
     await page.waitForTimeout(600)
 
     await editor.expectEditor.toContain(`sketch001 = startSketchOn('XZ')`)
-    await toolbar.exitSketchBtn.click()
+    await toolbar.exitSketch()
 
     await editor.expectEditor.not.toContain(`sketch001 = startSketchOn('XZ')`)
 
@@ -2181,6 +2184,8 @@ extrude001 = extrude(profile003, length = 5)
   )`
       )
 
+      await scene.settled(cmdBar)
+
       await scene.expectPixelColor([255, 255, 255], { x: 633, y: 211 }, 15)
     })
   })
diff --git a/e2e/playwright/snapshot-tests.spec.ts b/e2e/playwright/snapshot-tests.spec.ts
index 33e9bf40c..528a86b0f 100644
--- a/e2e/playwright/snapshot-tests.spec.ts
+++ b/e2e/playwright/snapshot-tests.spec.ts
@@ -31,8 +31,7 @@ test.beforeEach(async ({ page, context }) => {
 // Help engine-manager: tear shit down.
 test.afterEach(async ({ page }) => {
   await page.evaluate(() => {
-    // @ts-expect-error
-    window.tearDown()
+    window.engineCommandManager.tearDown()
   })
 })
 
@@ -45,7 +44,11 @@ test.setTimeout(60_000)
 test.skip(
   'exports of each format should work',
   { tag: ['@snapshot', '@skipWin', '@skipMacos'] },
-  async ({ page, context, scene, cmdBar }) => {
+  async ({ page, context, scene, cmdBar, tronApp }) => {
+    if (!tronApp) {
+      fail()
+    }
+
     // FYI this test doesn't work with only engine running locally
     // And you will need to have the KittyCAD CLI installed
     const u = await getUtils(page)
@@ -134,6 +137,7 @@ part001 = startSketchOn('-XZ')
           storage: 'ascii',
           units: 'in',
         },
+        tronApp.projectDirName,
         page
       )
     )
@@ -146,6 +150,7 @@ part001 = startSketchOn('-XZ')
           selection: { type: 'default_scene' },
           units: 'in',
         },
+        tronApp.projectDirName,
         page
       )
     )
@@ -158,6 +163,7 @@ part001 = startSketchOn('-XZ')
           selection: { type: 'default_scene' },
           units: 'in',
         },
+        tronApp.projectDirName,
         page
       )
     )
@@ -170,6 +176,7 @@ part001 = startSketchOn('-XZ')
           units: 'in',
           selection: { type: 'default_scene' },
         },
+        tronApp.projectDirName,
         page
       )
     )
@@ -182,6 +189,7 @@ part001 = startSketchOn('-XZ')
           units: 'in',
           selection: { type: 'default_scene' },
         },
+        tronApp.projectDirName,
         page
       )
     )
@@ -193,6 +201,7 @@ part001 = startSketchOn('-XZ')
           coords: sysType,
           units: 'in',
         },
+        tronApp.projectDirName,
         page
       )
     )
@@ -203,6 +212,7 @@ part001 = startSketchOn('-XZ')
           storage: 'embedded',
           presentation: 'pretty',
         },
+        tronApp.projectDirName,
         page
       )
     )
@@ -213,6 +223,7 @@ part001 = startSketchOn('-XZ')
           storage: 'binary',
           presentation: 'pretty',
         },
+        tronApp.projectDirName,
         page
       )
     )
@@ -223,6 +234,7 @@ part001 = startSketchOn('-XZ')
           storage: 'standard',
           presentation: 'pretty',
         },
+        tronApp.projectDirName,
         page
       )
     )
diff --git a/e2e/playwright/test-network-and-connection-issues.spec.ts b/e2e/playwright/test-network-and-connection-issues.spec.ts
index 0cc837ff9..cc6b5915f 100644
--- a/e2e/playwright/test-network-and-connection-issues.spec.ts
+++ b/e2e/playwright/test-network-and-connection-issues.spec.ts
@@ -84,7 +84,7 @@ test.describe('Test network and connection issues', () => {
     'Engine disconnect & reconnect in sketch mode',
     { tag: '@skipLocalEngine' },
     async ({ page, homePage }) => {
-      // TODO: Don't skip Mac for these. After `window.tearDown` is working in Safari, these should work on webkit
+      // TODO: Don't skip Mac for these. After `window.engineCommandManager.tearDown` is working in Safari, these should work on webkit
       const networkToggle = page.getByTestId('network-toggle')
 
       const u = await getUtils(page)
diff --git a/e2e/playwright/test-utils.ts b/e2e/playwright/test-utils.ts
index a08c6331c..6d10ecff0 100644
--- a/e2e/playwright/test-utils.ts
+++ b/e2e/playwright/test-utils.ts
@@ -5,8 +5,9 @@ import {
   _electron as electron,
   ElectronApplication,
   Locator,
+  Page,
 } from '@playwright/test'
-import { test, Page } from './zoo-test'
+import { test } from './zoo-test'
 import { EngineCommand } from 'lang/std/artifactGraph'
 import fsp from 'fs/promises'
 import fsSync from 'fs'
@@ -337,7 +338,7 @@ export const getMovementUtils = (opts: any) => {
 
 async function waitForAuthAndLsp(page: Page) {
   const waitForLspPromise = page.waitForEvent('console', {
-    predicate: async (message) => {
+    predicate: async (message: any) => {
       // it would be better to wait for a message that the kcl lsp has started by looking for the message  message.text().includes('[lsp] [window/logMessage]')
       // but that doesn't seem to make it to the console for macos/safari :(
       if (message.text().includes('start kcl lsp')) {
@@ -420,7 +421,7 @@ export async function getUtils(page: Page, test_?: typeof test) {
       const overlay = page.locator(locator)
       const bbox = await overlay
         .boundingBox({ timeout: 5_000 })
-        .then((box) => ({ ...box, x: box?.x || 0, y: box?.y || 0 }))
+        .then((box: any) => ({ ...box, x: box?.x || 0, y: box?.y || 0 }))
       const angle = Number(await overlay.getAttribute('data-overlay-angle'))
       const angleXOffset = Math.cos(((angle - 180) * Math.PI) / 180) * px
       const angleYOffset = Math.sin(((angle - 180) * Math.PI) / 180) * px
@@ -437,7 +438,7 @@ export async function getUtils(page: Page, test_?: typeof test) {
       page
         .locator(locator)
         .boundingBox({ timeout: 5_000 })
-        .then((box) => ({ ...box, x: box?.x || 0, y: box?.y || 0 })),
+        .then((box: any) => ({ ...box, x: box?.x || 0, y: box?.y || 0 })),
     codeLocator: page.locator('.cm-content'),
     crushKclCodeIntoOneLineAndThenMaybeSome: async () => {
       const code = await page.locator('.cm-content').innerText()
@@ -504,7 +505,7 @@ export async function getUtils(page: Page, test_?: typeof test) {
     ) => {
       if (cdpSession === null) {
         // Use a fail safe if we can't simulate disconnect (on Safari)
-        return page.evaluate('window.tearDown()')
+        return page.evaluate('window.engineCommandManager.tearDown()')
       }
 
       return cdpSession?.send(
@@ -631,7 +632,7 @@ export async function getUtils(page: Page, test_?: typeof test) {
     panesOpen: async (paneIds: PaneId[]) => {
       return test?.step(`Setting ${paneIds} panes to be open`, async () => {
         await page.addInitScript(
-          ({ PERSIST_MODELING_CONTEXT, paneIds }) => {
+          ({ PERSIST_MODELING_CONTEXT, paneIds }: any) => {
             localStorage.setItem(
               PERSIST_MODELING_CONTEXT,
               JSON.stringify({ openPanes: paneIds })
@@ -722,14 +723,14 @@ export const makeTemplate: (
 
 const PLAYWRIGHT_DOWNLOAD_DIR = 'downloads-during-playwright'
 
-export const getPlaywrightDownloadDir = (page: Page) => {
-  return path.resolve(page.dir, PLAYWRIGHT_DOWNLOAD_DIR)
+export const getPlaywrightDownloadDir = (rootDir: string) => {
+  return path.resolve(rootDir, PLAYWRIGHT_DOWNLOAD_DIR)
 }
 
-const moveDownloadedFileTo = async (page: Page, toLocation: string) => {
+const moveDownloadedFileTo = async (rootDir: string, toLocation: string) => {
   await fsp.mkdir(path.dirname(toLocation), { recursive: true })
 
-  const downloadDir = getPlaywrightDownloadDir(page)
+  const downloadDir = getPlaywrightDownloadDir(rootDir)
 
   // Expect there to be at least one file
   await expect
@@ -756,6 +757,7 @@ export interface Paths {
 
 export const doExport = async (
   output: Models['OutputFormat_type'],
+  rootDir: string,
   page: Page,
   exportFrom: 'dropdown' | 'sidebarButton' | 'commandBar' = 'dropdown'
 ): Promise<Paths> => {
@@ -836,7 +838,7 @@ export const doExport = async (
     // (declared in src/lib/exportSave)
     // To remain consistent with our old web tests, we want to move some downloads
     // (images) to another directory.
-    await moveDownloadedFileTo(page, downloadLocation)
+    await moveDownloadedFileTo(rootDir, downloadLocation)
   }
 
   return {
@@ -859,12 +861,6 @@ export async function tearDown(page: Page, testInfo: TestInfo) {
     downloadThroughput: -1,
     uploadThroughput: -1,
   })
-
-  // It seems it's best to give the browser about 3s to close things
-  // It's not super reliable but we have no real other choice for now
-  await page.waitForTimeout(3000)
-
-  await testInfo.tronApp?.close()
 }
 
 // settingsOverrides may need to be augmented to take more generic items,
@@ -936,107 +932,11 @@ let electronApp: ElectronApplication | undefined = undefined
 let context: BrowserContext | undefined = undefined
 let page: Page | undefined = undefined
 
-export async function setupElectron({
-  testInfo,
-  cleanProjectDir = true,
-  appSettings,
-  viewport,
-}: {
-  testInfo: TestInfo
-  folderSetupFn?: (projectDirName: string) => Promise<void>
-  cleanProjectDir?: boolean
-  appSettings?: DeepPartial<Settings>
-  viewport: {
-    width: number
-    height: number
-  }
-}): Promise<{
-  electronApp: ElectronApplication
-  context: BrowserContext
-  page: Page
-  dir: string
-}> {
-  // create or otherwise clear the folder
-  const projectDirName = testInfo.outputPath('electron-test-projects-dir')
-  try {
-    if (fsSync.existsSync(projectDirName) && cleanProjectDir) {
-      await fsp.rm(projectDirName, { recursive: true })
-    }
-  } catch (e) {
-    console.error(e)
-  }
-
-  if (cleanProjectDir) {
-    await fsp.mkdir(projectDirName)
-  }
-
-  const options = {
-    args: ['.', '--no-sandbox'],
-    env: {
-      ...process.env,
-      TEST_SETTINGS_FILE_KEY: projectDirName,
-      IS_PLAYWRIGHT: 'true',
-    },
-    ...(process.env.ELECTRON_OVERRIDE_DIST_PATH
-      ? { executablePath: process.env.ELECTRON_OVERRIDE_DIST_PATH + 'electron' }
-      : {}),
-    ...(process.env.PLAYWRIGHT_RECORD_VIDEO
-      ? {
-          recordVideo: {
-            dir: testInfo.snapshotPath(),
-            size: viewport,
-          },
-        }
-      : {}),
-  }
-
-  // Do this once and then reuse window on subsequent calls.
-  if (!electronApp) {
-    electronApp = await electron.launch(options)
-  }
-
-  if (!context || !page) {
-    context = electronApp.context()
-    page = await electronApp.firstWindow()
-    context.on('console', console.log)
-    page.on('console', console.log)
-  }
-
-  if (cleanProjectDir) {
-    const tempSettingsFilePath = path.join(projectDirName, SETTINGS_FILE_NAME)
-    const settingsOverrides = settingsToToml(
-      appSettings
-        ? {
-            settings: {
-              ...TEST_SETTINGS,
-              ...appSettings,
-              app: {
-                ...TEST_SETTINGS.app,
-                project_directory: projectDirName,
-                ...appSettings.app,
-              },
-            },
-          }
-        : {
-            settings: {
-              ...TEST_SETTINGS,
-              app: {
-                ...TEST_SETTINGS.app,
-                project_directory: projectDirName,
-              },
-            },
-          }
-    )
-    await fsp.writeFile(tempSettingsFilePath, settingsOverrides)
-  }
-
-  return { electronApp, page, context, dir: projectDirName }
-}
-
 function failOnConsoleErrors(page: Page, testInfo?: TestInfo) {
   // enabled for chrome for now
   if (page.context().browser()?.browserType().name() === 'chromium') {
-    page.on('pageerror', (exception) => {
+    // No idea wtf exception is
+    page.on('pageerror', (exception: any) => {
       if (isErrorWhitelisted(exception)) {
         return
       }
diff --git a/e2e/playwright/testing-segment-overlays.spec.ts b/e2e/playwright/testing-segment-overlays.spec.ts
index 52219d3fa..65456d06b 100644
--- a/e2e/playwright/testing-segment-overlays.spec.ts
+++ b/e2e/playwright/testing-segment-overlays.spec.ts
@@ -1,4 +1,5 @@
-import { test, expect, Page } from './zoo-test'
+import { Page } from '@playwright/test'
+import { test, expect } from './zoo-test'
 
 import { deg, getUtils, wiggleMove } from './test-utils'
 import { LineInputsType } from 'lang/std/sketchcombos'
diff --git a/e2e/playwright/testing-settings.spec.ts b/e2e/playwright/testing-settings.spec.ts
index 70babbff6..aed910fcd 100644
--- a/e2e/playwright/testing-settings.spec.ts
+++ b/e2e/playwright/testing-settings.spec.ts
@@ -20,35 +20,40 @@ import { DeepPartial } from 'lib/types'
 import { Settings } from '@rust/kcl-lib/bindings/Settings'
 
 test.describe('Testing settings', () => {
-  test(
-    'Stored settings are validated and fall back to defaults',
+  test('Stored settings are validated and fall back to defaults', async ({
+    page,
+    homePage,
+    tronApp,
+  }) => {
+    if (!tronApp) {
+      fail()
+    }
     // Override beforeEach test setup
     // with corrupted settings
-    {
-      appSettings: TEST_SETTINGS_CORRUPTED as DeepPartial<Settings>,
-    },
-    async ({ page, homePage }) => {
-      await page.setBodyDimensions({ width: 1200, height: 500 })
+    await tronApp.cleanProjectDir(
+      TEST_SETTINGS_CORRUPTED as DeepPartial<Settings>
+    )
 
-      // Check the settings were reset
-      const storedSettings = tomlToSettings(
-        await page.evaluate(
-          ({ settingsKey }) => localStorage.getItem(settingsKey) || '',
-          { settingsKey: TEST_SETTINGS_KEY }
-        )
+    await page.setBodyDimensions({ width: 1200, height: 500 })
+
+    // Check the settings were reset
+    const storedSettings = tomlToSettings(
+      await page.evaluate(
+        ({ settingsKey }) => localStorage.getItem(settingsKey) || '',
+        { settingsKey: TEST_SETTINGS_KEY }
       )
+    )
 
-      expect(storedSettings.settings?.app?.theme).toBe('dark')
+    expect(storedSettings.settings?.app?.theme).toBe('dark')
 
-      // Check that the invalid settings were changed to good defaults
-      expect(storedSettings.settings?.modeling?.base_unit).toBe('in')
-      expect(storedSettings.settings?.modeling?.mouse_controls).toBe('zoo')
-      expect(storedSettings.settings?.app?.project_directory).toBe('')
-      expect(storedSettings.settings?.project?.default_project_name).toBe(
-        'project-$nnn'
-      )
-    }
-  )
+    // Check that the invalid settings were changed to good defaults
+    expect(storedSettings.settings?.modeling?.base_unit).toBe('in')
+    expect(storedSettings.settings?.modeling?.mouse_controls).toBe('zoo')
+    expect(storedSettings.settings?.app?.project_directory).toBe('')
+    expect(storedSettings.settings?.project?.default_project_name).toBe(
+      'project-$nnn'
+    )
+  })
 
   // The behavior is actually broken. Parent always takes precedence
   test.fixme(
@@ -357,8 +362,6 @@ test.describe('Testing settings', () => {
     `Load desktop app with no settings file`,
     {
       tag: '@electron',
-      // This is what makes no settings file get created
-      cleanProjectDir: false,
     },
     async ({ page }, testInfo) => {
       await page.setBodyDimensions({ width: 1200, height: 500 })
@@ -379,13 +382,17 @@ test.describe('Testing settings', () => {
     `Load desktop app with a settings file, but no project directory setting`,
     {
       tag: '@electron',
-      appSettings: {
+    },
+    async ({ context, page, tronApp }, testInfo) => {
+      if (!tronApp) {
+        fail()
+      }
+      await tronApp.cleanProjectDir({
         app: {
           theme_color: '259',
         },
-      },
-    },
-    async ({ context, page }, testInfo) => {
+      })
+
       await page.setBodyDimensions({ width: 1200, height: 500 })
 
       // Selectors and constants
@@ -405,15 +412,20 @@ test.describe('Testing settings', () => {
     'user settings reload on external change, on project and modeling view',
     {
       tag: '@electron',
-      appSettings: {
+    },
+    async ({ context, page, tronApp }, testInfo) => {
+      if (!tronApp) {
+        fail()
+      }
+
+      await tronApp.cleanProjectDir({
         app: {
           // Doesn't matter what you set it to. It will
           // default to 264.5
           theme_color: '0',
         },
-      },
-    },
-    async ({ context, page }, testInfo) => {
+      })
+
       const { dir: projectDirName } = await context.folderSetupFn(
         async () => {}
       )
@@ -783,128 +795,136 @@ test.describe('Testing settings', () => {
     })
   })
 
-  test(
-    `Changing system theme preferences (via media query) should update UI and stream`,
-    {
-      // Override the settings so that the theme is set to `system`
-      appSettings: TEST_SETTINGS_DEFAULT_THEME,
-    },
-    async ({ page, homePage }) => {
-      const u = await getUtils(page)
-
-      // Selectors and constants
-      const darkBackgroundCss = 'oklch(0.3012 0 264.5)'
-      const lightBackgroundCss = 'oklch(0.9911 0 264.5)'
-      const darkBackgroundColor: [number, number, number] = [27, 27, 27]
-      const lightBackgroundColor: [number, number, number] = [245, 245, 245]
-      const streamBackgroundPixelIsColor = async (
-        color: [number, number, number]
-      ) => {
-        return u.getGreatestPixDiff({ x: 1000, y: 200 }, color)
-      }
-      const toolbar = page.locator('menu').filter({ hasText: 'Start Sketch' })
-
-      await test.step(`Test setup`, async () => {
-        await page.setBodyDimensions({ width: 1200, height: 500 })
-        await homePage.goToModelingScene()
-        await u.waitForPageLoad()
-        await page.waitForTimeout(1000)
-        await expect(toolbar).toBeVisible()
-      })
-
-      await test.step(`Check the background color is light before`, async () => {
-        await expect(toolbar).toHaveCSS('background-color', lightBackgroundCss)
-        await expect
-          .poll(() => streamBackgroundPixelIsColor(lightBackgroundColor))
-          .toBeLessThan(15)
-      })
-
-      await test.step(`Change media query preference to dark, emulating dusk with system theme`, async () => {
-        await page.emulateMedia({ colorScheme: 'dark' })
-      })
-
-      await test.step(`Check the background color is dark after`, async () => {
-        await expect(toolbar).toHaveCSS('background-color', darkBackgroundCss)
-        await expect
-          .poll(() => streamBackgroundPixelIsColor(darkBackgroundColor))
-          .toBeLessThan(15)
-      })
+  test(`Changing system theme preferences (via media query) should update UI and stream`, async ({
+    page,
+    homePage,
+    tronApp,
+  }) => {
+    if (!tronApp) {
+      fail()
     }
-  )
 
-  test(
-    `Turning off "Show debug panel" with debug panel open leaves no phantom panel`,
-    {
+    await tronApp.cleanProjectDir({
+      // Override the settings so that the theme is set to `system`
+      ...TEST_SETTINGS_DEFAULT_THEME,
+    })
+
+    const u = await getUtils(page)
+
+    // Selectors and constants
+    const darkBackgroundCss = 'oklch(0.3012 0 264.5)'
+    const lightBackgroundCss = 'oklch(0.9911 0 264.5)'
+    const darkBackgroundColor: [number, number, number] = [27, 27, 27]
+    const lightBackgroundColor: [number, number, number] = [245, 245, 245]
+    const streamBackgroundPixelIsColor = async (
+      color: [number, number, number]
+    ) => {
+      return u.getGreatestPixDiff({ x: 1000, y: 200 }, color)
+    }
+    const toolbar = page.locator('menu').filter({ hasText: 'Start Sketch' })
+
+    await test.step(`Test setup`, async () => {
+      await page.setBodyDimensions({ width: 1200, height: 500 })
+      await homePage.goToModelingScene()
+      await u.waitForPageLoad()
+      await page.waitForTimeout(1000)
+      await expect(toolbar).toBeVisible()
+    })
+
+    await test.step(`Check the background color is light before`, async () => {
+      await expect(toolbar).toHaveCSS('background-color', lightBackgroundCss)
+      await expect
+        .poll(() => streamBackgroundPixelIsColor(lightBackgroundColor))
+        .toBeLessThan(15)
+    })
+
+    await test.step(`Change media query preference to dark, emulating dusk with system theme`, async () => {
+      await page.emulateMedia({ colorScheme: 'dark' })
+    })
+
+    await test.step(`Check the background color is dark after`, async () => {
+      await expect(toolbar).toHaveCSS('background-color', darkBackgroundCss)
+      await expect
+        .poll(() => streamBackgroundPixelIsColor(darkBackgroundColor))
+        .toBeLessThan(15)
+    })
+  })
+
+  test(`Turning off "Show debug panel" with debug panel open leaves no phantom panel`, async ({
+    context,
+    page,
+    homePage,
+    tronApp,
+  }) => {
+    if (!tronApp) {
+      fail()
+    }
+
+    await tronApp.cleanProjectDir({
       // Override beforeEach test setup
       // with debug panel open
       // but "show debug panel" set to false
-      appSettings: {
-        ...TEST_SETTINGS,
-        app: { ...TEST_SETTINGS.app, show_debug_panel: false },
-        modeling: { ...TEST_SETTINGS.modeling },
-      },
-    },
-    async ({ context, page, homePage }) => {
-      const u = await getUtils(page)
+      ...TEST_SETTINGS,
+      app: { ...TEST_SETTINGS.app, show_debug_panel: false },
+      modeling: { ...TEST_SETTINGS.modeling },
+    })
 
-      await context.addInitScript(async () => {
-        localStorage.setItem(
-          'persistModelingContext',
-          '{"openPanes":["debug"]}'
+    const u = await getUtils(page)
+
+    await context.addInitScript(async () => {
+      localStorage.setItem('persistModelingContext', '{"openPanes":["debug"]}')
+    })
+    await page.setBodyDimensions({ width: 1200, height: 500 })
+    await homePage.goToModelingScene()
+
+    // Constants and locators
+    const resizeHandle = page.locator('.sidebar-resize-handles > div.block')
+    const debugPaneButton = page.getByTestId('debug-pane-button')
+    const commandsButton = page.getByRole('button', { name: 'Commands' })
+    const debugPaneOption = page.getByRole('option', {
+      name: 'Settings · app · show debug panel',
+    })
+
+    async function setShowDebugPanelTo(value: 'On' | 'Off') {
+      await commandsButton.click()
+      await debugPaneOption.click()
+      await page.getByRole('option', { name: value }).click()
+      await expect(
+        page.getByText(
+          `Set show debug panel to "${value === 'On'}" for this project`
         )
-      })
-      await page.setBodyDimensions({ width: 1200, height: 500 })
-      await homePage.goToModelingScene()
-
-      // Constants and locators
-      const resizeHandle = page.locator('.sidebar-resize-handles > div.block')
-      const debugPaneButton = page.getByTestId('debug-pane-button')
-      const commandsButton = page.getByRole('button', { name: 'Commands' })
-      const debugPaneOption = page.getByRole('option', {
-        name: 'Settings · app · show debug panel',
-      })
-
-      async function setShowDebugPanelTo(value: 'On' | 'Off') {
-        await commandsButton.click()
-        await debugPaneOption.click()
-        await page.getByRole('option', { name: value }).click()
-        await expect(
-          page.getByText(
-            `Set show debug panel to "${value === 'On'}" for this project`
-          )
-        ).toBeVisible()
-      }
-
-      await test.step(`Initial load with corrupted settings`, async () => {
-        // Check that the debug panel is not visible
-        await expect(debugPaneButton).not.toBeVisible()
-        // Check the pane resize handle wrapper is not visible
-        await expect(resizeHandle).not.toBeVisible()
-      })
-
-      await test.step(`Open code pane to verify we see the resize handles`, async () => {
-        await u.openKclCodePanel()
-        await expect(resizeHandle).toBeVisible()
-        await u.closeKclCodePanel()
-      })
-
-      await test.step(`Turn on debug panel, open it`, async () => {
-        await setShowDebugPanelTo('On')
-        await expect(debugPaneButton).toBeVisible()
-        // We want the logic to clear the phantom panel, so we shouldn't see
-        // the real panel (and therefore the resize handle) yet
-        await expect(resizeHandle).not.toBeVisible()
-        await u.openDebugPanel()
-        await expect(resizeHandle).toBeVisible()
-      })
-
-      await test.step(`Turn off debug panel setting with it open`, async () => {
-        await setShowDebugPanelTo('Off')
-        await expect(debugPaneButton).not.toBeVisible()
-        await expect(resizeHandle).not.toBeVisible()
-      })
+      ).toBeVisible()
     }
-  )
+
+    await test.step(`Initial load with corrupted settings`, async () => {
+      // Check that the debug panel is not visible
+      await expect(debugPaneButton).not.toBeVisible()
+      // Check the pane resize handle wrapper is not visible
+      await expect(resizeHandle).not.toBeVisible()
+    })
+
+    await test.step(`Open code pane to verify we see the resize handles`, async () => {
+      await u.openKclCodePanel()
+      await expect(resizeHandle).toBeVisible()
+      await u.closeKclCodePanel()
+    })
+
+    await test.step(`Turn on debug panel, open it`, async () => {
+      await setShowDebugPanelTo('On')
+      await expect(debugPaneButton).toBeVisible()
+      // We want the logic to clear the phantom panel, so we shouldn't see
+      // the real panel (and therefore the resize handle) yet
+      await expect(resizeHandle).not.toBeVisible()
+      await u.openDebugPanel()
+      await expect(resizeHandle).toBeVisible()
+    })
+
+    await test.step(`Turn off debug panel setting with it open`, async () => {
+      await setShowDebugPanelTo('Off')
+      await expect(debugPaneButton).not.toBeVisible()
+      await expect(resizeHandle).not.toBeVisible()
+    })
+  })
 
   test(`Change inline units setting`, async ({
     page,
diff --git a/e2e/playwright/text-to-cad-tests.spec.ts b/e2e/playwright/text-to-cad-tests.spec.ts
index 5e45a034c..0a97c766b 100644
--- a/e2e/playwright/text-to-cad-tests.spec.ts
+++ b/e2e/playwright/text-to-cad-tests.spec.ts
@@ -1,4 +1,5 @@
-import { test, expect, Page } from './zoo-test'
+import { Page } from '@playwright/test'
+import { test, expect } from './zoo-test'
 import { getUtils, createProject } from './test-utils'
 import { join } from 'path'
 import fs from 'fs'
diff --git a/e2e/playwright/various.spec.ts b/e2e/playwright/various.spec.ts
index 60365bd5d..512ba0c7a 100644
--- a/e2e/playwright/various.spec.ts
+++ b/e2e/playwright/various.spec.ts
@@ -35,7 +35,7 @@ test.fixme('Units menu', async ({ page, homePage }) => {
 test(
   'Successful export shows a success toast',
   { tag: '@skipLocalEngine' },
-  async ({ page, homePage }) => {
+  async ({ page, homePage, tronApp }) => {
     // FYI this test doesn't work with only engine running locally
     // And you will need to have the KittyCAD CLI installed
     const u = await getUtils(page)
@@ -92,12 +92,17 @@ part001 = startSketchOn('-XZ')
     await page.waitForTimeout(1000)
     await u.clearAndCloseDebugPanel()
 
+    if (!tronApp?.projectDirName) {
+      fail()
+    }
+
     await doExport(
       {
         type: 'gltf',
         storage: 'embedded',
         presentation: 'pretty',
       },
+      tronApp?.projectDirName,
       page
     )
   }
@@ -465,7 +470,7 @@ test('Delete key does not navigate back', async ({ page, homePage }) => {
   await expect.poll(() => page.url()).not.toContain('/settings')
 })
 
-test('Sketch on face', async ({ page, homePage, scene, cmdBar }) => {
+test('Sketch on face', async ({ page, homePage, scene, cmdBar, toolbar }) => {
   test.setTimeout(90_000)
   const u = await getUtils(page)
   await page.addInitScript(async () => {
@@ -491,25 +496,22 @@ extrude001 = extrude(sketch001, length = 5 + 7)`
   await page.setBodyDimensions({ width: 1200, height: 500 })
 
   await homePage.goToModelingScene()
-  await scene.waitForExecutionDone()
-
-  await expect(
-    page.getByRole('button', { name: 'Start Sketch' })
-  ).not.toBeDisabled()
-
-  await page.getByRole('button', { name: 'Start Sketch' }).click()
-  await page.waitForTimeout(300)
+  await scene.connectionEstablished()
+  await scene.settled(cmdBar)
 
   let previousCodeContent = await page.locator('.cm-content').innerText()
 
-  await u.openAndClearDebugPanel()
-  await u.doAndWaitForCmd(
-    () => page.mouse.click(625, 165),
-    'default_camera_get_settings',
-    true
-  )
-  await page.waitForTimeout(150)
-  await u.closeDebugPanel()
+  await toolbar.startSketchThenCallbackThenWaitUntilReady(async () => {
+    await u.openAndClearDebugPanel()
+    await u.doAndWaitForCmd(
+      () => page.mouse.click(625, 165),
+      'default_camera_get_settings',
+      true
+    )
+    await page.waitForTimeout(150)
+    await u.closeDebugPanel()
+  })
+  await page.waitForTimeout(300)
 
   const firstClickPosition = [612, 238]
   const secondClickPosition = [661, 242]
diff --git a/e2e/playwright/zoo-test.ts b/e2e/playwright/zoo-test.ts
index 317d79d0e..3e3c433da 100644
--- a/e2e/playwright/zoo-test.ts
+++ b/e2e/playwright/zoo-test.ts
@@ -1,21 +1,11 @@
-import {
-  test as playwrightTestFn,
-  TestInfo as TestInfoPlaywright,
-  BrowserContext as BrowserContextPlaywright,
-  Page as PagePlaywright,
-  TestDetails as TestDetailsPlaywright,
-  PlaywrightTestArgs,
-  PlaywrightTestOptions,
-  PlaywrightWorkerArgs,
-  PlaywrightWorkerOptions,
-  ElectronApplication,
-} from '@playwright/test'
+/* eslint-disable react-hooks/rules-of-hooks */
+
+import { test as playwrightTestFn, ElectronApplication } from '@playwright/test'
 
 import {
-  fixtures,
+  fixturesBasedOnProcessEnvPlatform,
   Fixtures,
-  AuthenticatedTronApp,
-  AuthenticatedApp,
+  ElectronZoo,
 } from './fixtures/fixtureSetup'
 
 import { Settings } from '@rust/kcl-lib/bindings/Settings'
@@ -23,9 +13,6 @@ import { DeepPartial } from 'lib/types'
 export { expect } from '@playwright/test'
 
 declare module '@playwright/test' {
-  interface TestInfo {
-    tronApp?: AuthenticatedTronApp
-  }
   interface BrowserContext {
     folderSetupFn: (
       cb: (dir: string) => Promise<void>
@@ -41,288 +28,29 @@ declare module '@playwright/test' {
   }
 }
 
-export type TestInfo = TestInfoPlaywright
-export type BrowserContext = BrowserContextPlaywright
-export type Page = PagePlaywright
-export type TestDetails = TestDetailsPlaywright & {
-  cleanProjectDir?: boolean
-  appSettings?: DeepPartial<Settings>
-}
+// Each worker spawns a new thread, which will spawn its own ElectronZoo.
+// So in some sense there is an implicit pool.
+// For example, the variable just beneath this text is reused many times
+// *for one worker*.
+const electronZooInstance = new ElectronZoo()
 
 // Our custom decorated Zoo test object. Makes it easier to add fixtures, and
 // switch between web and electron if needed.
-const pwTestFnWithFixtures = playwrightTestFn.extend<Fixtures>(fixtures)
-
-// In JavaScript you cannot replace a function's body only (despite functions
-// are themselves objects, which you'd expect a body property or something...)
-// So we must redefine the function and then re-attach properties.
-type PWFunction = (
-  args: PlaywrightTestArgs &
-    Fixtures &
-    PlaywrightWorkerArgs &
-    PlaywrightTestOptions &
-    PlaywrightWorkerOptions & {
-      electronApp?: ElectronApplication
-    },
-  testInfo: TestInfo
-) => void | Promise<void>
-
-let firstUrl = ''
-
-export const test = (
-  desc: string,
-  objOrFn: PWFunction | TestDetails,
-  fnMaybe?: PWFunction
-) => {
-  const hasTestConf = typeof objOrFn === 'object'
-  const fn = hasTestConf ? fnMaybe : objOrFn
-
-  return pwTestFnWithFixtures(
-    desc,
-    hasTestConf ? objOrFn : {},
-    async (
-      {
-        page,
-        context,
-        cmdBar,
-        editor,
-        toolbar,
-        scene,
-        homePage,
-        request,
-        playwright,
-        browser,
-        acceptDownloads,
-        bypassCSP,
-        colorScheme,
-        clientCertificates,
-        deviceScaleFactor,
-        extraHTTPHeaders,
-        geolocation,
-        hasTouch,
-        httpCredentials,
-        ignoreHTTPSErrors,
-        isMobile,
-        javaScriptEnabled,
-        locale,
-        offline,
-        permissions,
-        proxy,
-        storageState,
-        timezoneId,
-        userAgent,
-        viewport,
-        baseURL,
-        contextOptions,
-        actionTimeout,
-        navigationTimeout,
-        serviceWorkers,
-        testIdAttribute,
-        browserName,
-        defaultBrowserType,
-        headless,
-        channel,
-        launchOptions,
-        connectOptions,
-        screenshot,
-        trace,
-        video,
-      },
-      testInfo
-    ) => {
-      // To switch to web, use PLATFORM=web environment variable.
-      // Only use this for debugging, since the playwright tracer is busted
-      // for electron.
-
-      let tronApp
-
-      if (process.env.PLATFORM === 'web') {
-        tronApp = new AuthenticatedApp(context, page, testInfo)
-      } else {
-        tronApp = new AuthenticatedTronApp(context, page, testInfo)
-      }
-
-      const fixtures: Fixtures = { cmdBar, editor, toolbar, scene, homePage }
-      if (tronApp instanceof AuthenticatedTronApp) {
-        const options = {
-          fixtures,
-        }
-        if (hasTestConf) {
-          Object.assign(options, {
-            appSettings: objOrFn?.appSettings,
-            cleanProjectDir: objOrFn?.cleanProjectDir,
-          })
-        }
-        await tronApp.initialise(options)
-      } else {
-        await tronApp.initialise('')
-      }
-
-      // We need to patch this because addInitScript will bind too late in our
-      // electron tests, never running. We need to call reload() after each call
-      // to guarantee it runs.
-      const oldContextAddInitScript = tronApp.context.addInitScript
-      tronApp.context.addInitScript = async function (a, b) {
-        // @ts-ignore pretty sure way out of tsc's type checking capabilities.
-        // This code works perfectly fine.
-        await oldContextAddInitScript.apply(this, [a, b])
-        await tronApp.page.reload()
-      }
-
-      // No idea why we mix and match page and context's addInitScript but we do
-      const oldPageAddInitScript = tronApp.page.addInitScript
-      tronApp.page.addInitScript = async function (a: any, b: any) {
-        // @ts-ignore pretty sure way out of tsc's type checking capabilities.
-        // This code works perfectly fine.
-        await oldPageAddInitScript.apply(this, [a, b])
-        await tronApp.page.reload()
-      }
-
-      // Create a consistent way to resize the page across electron and web.
-      // (lee) I had to do everything in the book to make electron change its
-      // damn window size. I succeeded in making it consistently and reliably
-      // do it after a whole afternoon.
-      tronApp.page.setBodyDimensions = async function (dims: {
-        width: number
-        height: number
-      }) {
-        await tronApp.page.setViewportSize(dims)
-
-        if (!(tronApp instanceof AuthenticatedTronApp)) {
-          return
-        }
-
-        await tronApp.electronApp?.evaluateHandle(async ({ app }, dims) => {
-          // @ts-ignore sorry jon but see comment in main.ts why this is ignored
-          await app.resizeWindow(dims.width, dims.height)
-        }, dims)
-
-        return tronApp.page.evaluate(
-          async (dims: { width: number; height: number }) => {
-            await window.electron.resizeWindow(dims.width, dims.height)
-            window.document.body.style.width = dims.width + 'px'
-            window.document.body.style.height = dims.height + 'px'
-            window.document.documentElement.style.width = dims.width + 'px'
-            window.document.documentElement.style.height = dims.height + 'px'
-          },
-          dims
-        )
-      }
-
-      await tronApp.page.setBodyDimensions(tronApp.viewPortSize)
-
-      // We need to expose this in order for some tests that require folder
-      // creation. Before they used to do this by their own electronSetup({...})
-      // calls.
-      if (tronApp instanceof AuthenticatedTronApp) {
-        tronApp.context.folderSetupFn = async function (fn) {
-          return fn(tronApp.dir)
-            .then(() => tronApp.page.reload())
-            .then(() => ({
-              dir: tronApp.dir,
-            }))
-        }
-      }
-
-      if (!firstUrl) {
-        await tronApp.page.getByText('Your Projects').count()
-        firstUrl = tronApp.page.url()
-      }
-
-      // Due to the app controlling its own window context we need to inject new
-      // options and context here.
-      // NOTE TO LEE: Seems to destroy page context when calling an electron loadURL.
-      // await tronApp.electronApp.evaluate(({ app }) => {
-      //   return app.reuseWindowForTest();
-      // });
-
-      await tronApp.electronApp?.evaluate(({ app }, projectDirName) => {
-        // @ts-ignore can't declaration merge see main.ts
-        app.testProperty['TEST_SETTINGS_FILE_KEY'] = projectDirName
-      }, tronApp.dir)
-
-      // Always start at the root view
-      await tronApp.page.goto(firstUrl)
-
-      // Force a hard reload, destroying the stream and other state
-      await tronApp.page.reload()
-
-      // tsc aint smart enough to know this'll never be undefined
-      // but I dont blame it, the logic to know is complex
-      if (fn) {
-        await fn(
-          {
-            context: tronApp.context,
-            page: tronApp.page,
-            electronApp:
-              tronApp instanceof AuthenticatedTronApp
-                ? tronApp.electronApp
-                : undefined,
-            ...fixtures,
-            request,
-            playwright,
-            browser,
-            acceptDownloads,
-            bypassCSP,
-            colorScheme,
-            clientCertificates,
-            deviceScaleFactor,
-            extraHTTPHeaders,
-            geolocation,
-            hasTouch,
-            httpCredentials,
-            ignoreHTTPSErrors,
-            isMobile,
-            javaScriptEnabled,
-            locale,
-            offline,
-            permissions,
-            proxy,
-            storageState,
-            timezoneId,
-            userAgent,
-            viewport,
-            baseURL,
-            contextOptions,
-            actionTimeout,
-            navigationTimeout,
-            serviceWorkers,
-            testIdAttribute,
-            browserName,
-            defaultBrowserType,
-            headless,
-            channel,
-            launchOptions,
-            connectOptions,
-            screenshot,
-            trace,
-            video,
-          },
-          testInfo
-        )
-      }
-
-      testInfo.tronApp =
-        tronApp instanceof AuthenticatedTronApp ? tronApp : undefined
+const playwrightTestFnWithFixtures_ = playwrightTestFn.extend<{
+  tronApp?: ElectronZoo
+}>({
+  tronApp: async ({}, use, testInfo) => {
+    if (process.env.PLATFORM === 'web') {
+      await use(undefined)
+      return
     }
-  )
-}
 
-type ZooTest = typeof test
+    await use(electronZooInstance)
+  },
+})
 
-test.describe = pwTestFnWithFixtures.describe
-test.beforeEach = pwTestFnWithFixtures.beforeEach
-test.afterEach = pwTestFnWithFixtures.afterEach
-test.step = pwTestFnWithFixtures.step
-test.skip = pwTestFnWithFixtures.skip
-test.setTimeout = pwTestFnWithFixtures.setTimeout
-test.fixme = pwTestFnWithFixtures.fixme as unknown as ZooTest
-test.only = pwTestFnWithFixtures.only
-test.fail = pwTestFnWithFixtures.fail
-test.slow = pwTestFnWithFixtures.slow
-test.beforeAll = pwTestFnWithFixtures.beforeAll
-test.afterAll = pwTestFnWithFixtures.afterAll
-test.use = pwTestFnWithFixtures.use
-test.expect = pwTestFnWithFixtures.expect
-test.extend = pwTestFnWithFixtures.extend
-test.info = pwTestFnWithFixtures.info
+const test = playwrightTestFnWithFixtures_.extend<Fixtures>(
+  fixturesBasedOnProcessEnvPlatform
+)
+
+export { test }
diff --git a/package.json b/package.json
index f71c89ebf..ec9b402b7 100644
--- a/package.json
+++ b/package.json
@@ -106,7 +106,7 @@
     "files:flip-to-nightly:windows": "./scripts/flip-files-to-nightly.ps1",
     "files:invalidate-bucket": "./scripts/invalidate-files-bucket.sh",
     "files:invalidate-bucket:nightly": "./scripts/invalidate-files-bucket.sh --nightly",
-    "postinstall": "./node_modules/.bin/electron-rebuild",
+    "postinstall": "yarn --cwd ./rust/kcl-language-server --modules-folder node_modules install && ./node_modules/.bin/electron-rebuild",
     "make:dev": "make dev",
     "generate:machine-api": "npx openapi-typescript ./openapi/machine-api.json -o src/lib/machine-api.d.ts",
     "generate:samples-manifest": "cd public/kcl-samples && node generate-manifest.js",
diff --git a/src/components/Gizmo.tsx b/src/components/Gizmo.tsx
index b500b1332..06c681bb6 100644
--- a/src/components/Gizmo.tsx
+++ b/src/components/Gizmo.tsx
@@ -136,6 +136,7 @@ export default function Gizmo() {
       <div
         ref={wrapperRef}
         aria-label="View orientation gizmo"
+        data-testid={`gizmo${disableOrbitRef.current ? '-disabled' : ''}`}
         className="grid place-content-center rounded-full overflow-hidden border border-solid border-primary/50 pointer-events-auto bg-chalkboard-10/70 dark:bg-chalkboard-100/80 backdrop-blur-sm"
       >
         <canvas ref={canvasRef} />
diff --git a/src/lang/std/engineConnection.ts b/src/lang/std/engineConnection.ts
index 44a92d073..e4ac5b247 100644
--- a/src/lang/std/engineConnection.ts
+++ b/src/lang/std/engineConnection.ts
@@ -1914,7 +1914,7 @@ export class EngineCommandManager extends EventTarget {
 
       this.engineConnection?.tearDown(opts)
 
-      // Our window.tearDown assignment causes this case to happen which is
+      // Our window.engineCommandManager.tearDown assignment causes this case to happen which is
       // only really for tests.
       // @ts-ignore
     } else if (this.engineCommandManager?.engineConnection) {
diff --git a/src/lib/desktop.ts b/src/lib/desktop.ts
index a646c15b2..5e252aaa8 100644
--- a/src/lib/desktop.ts
+++ b/src/lib/desktop.ts
@@ -405,6 +405,8 @@ export const getAppSettingsFilePath = async () => {
   const testSettingsPath = await window.electron.getAppTestProperty(
     'TEST_SETTINGS_FILE_KEY'
   )
+  if (isTestEnv && !testSettingsPath) return SETTINGS_FILE_NAME
+
   const appConfig = await window.electron.getPath('appData')
   const fullPath = isTestEnv
     ? testSettingsPath
diff --git a/src/lib/singletons.ts b/src/lib/singletons.ts
index 4f9481b72..ca9796c95 100644
--- a/src/lib/singletons.ts
+++ b/src/lib/singletons.ts
@@ -10,9 +10,15 @@ export const codeManager = new CodeManager()
 
 export const engineCommandManager = new EngineCommandManager()
 
+declare global {
+  interface Window {
+    editorManager: EditorManager
+    engineCommandManager: EngineCommandManager
+  }
+}
+
 // Accessible for tests mostly
-// @ts-ignore
-window.tearDown = engineCommandManager.tearDown
+window.engineCommandManager = engineCommandManager
 
 // This needs to be after codeManager is created.
 export const kclManager = new KclManager(engineCommandManager)
@@ -23,12 +29,6 @@ engineCommandManager.camControlsCameraChange = sceneInfra.onCameraChange
 
 export const sceneEntitiesManager = new SceneEntities(engineCommandManager)
 
-declare global {
-  interface Window {
-    editorManager: EditorManager
-  }
-}
-
 // This needs to be after sceneInfra and engineCommandManager are is created.
 export const editorManager = new EditorManager()