it works!

.eslintignore

@@ -1,3 +1,4 @@
 src/wasm-lib/*
+src/lib/engine-utils/engine.js
 *.typegen.ts
 packages/codemirror-lsp-client/dist/*

src/lib/engineUtils.ts

@@ -1,4 +1,4 @@
-import EngineUtils from './engine-utils/engine.js'
+import EngineUtils from '@engine-utils'
 
 type KCEngineUtilsEvaluatePath = {
   (sketch: string, t: number): string
@@ -10,7 +10,7 @@ export async function init() {
     try {
       EngineUtils().then((module) => {
         kcEngineUtilsEvaluatePath = module.cwrap(
-          'kcEngineCalcPathEndpoint',
+          'kcEngineUtilsEvaluatePath',
           'string',
           ['string', 'number']
         )
@@ -27,5 +27,31 @@ export async function getTruePathEndPos(sketch: string) {
     await init()
   }
 
+  //testing
+  const obj = {
+    path: [
+      {
+        command: 'moveTo',
+        pos: { x: 0, y: 0, z: 0 },
+      },
+      {
+        command: 'lineTo',
+        pos: { x: 10, y: 10, z: 0 },
+      },
+      {
+        command: 'bezCurveTo',
+        controlPoint1: { x: 15, y: 5, z: 0 },
+        controlPoint2: { x: 20, y: 15, z: 0 },
+        pos: { x: 25, y: 12.5, z: 0 },
+      },
+      {
+        command: 'tangentialArc',
+        radius: 15,
+        offset: -45,
+      },
+    ],
+  }
+  sketch = JSON.stringify(obj)
+
   return kcEngineUtilsEvaluatePath(sketch, 1.0)
 }

vite.config.ts

@@ -58,6 +58,7 @@ const config = defineConfig({
   resolve: {
     alias: {
       '@kittycad/codemirror-lsp-client': '/packages/codemirror-lsp-client/src',
+      '@engine-utils': '/src/lib/engine-utils/engine.js',
     },
   },
   plugins: [react(), viteTsconfigPaths(), eslint(), version(), lezer()],