diff --git a/package-lock.json b/package-lock.json
index 71ca170..3c32972 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
         "@tailwindcss/jit": "^0.1.18",
         "babel-loader": "^8.2.2",
         "browser-fs-access": "^0.16.4",
+        "bson": "^4.3.0",
         "copy-webpack-plugin": "^8.1.1",
         "css-loader": "^5.1.3",
         "gh-pages": "^3.1.0",
@@ -1284,6 +1285,26 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/base64-js": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
+      "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ]
+    },
     "node_modules/batch": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/batch/-/batch-0.6.1.tgz",
@@ -1428,6 +1449,42 @@
         "url": "https://opencollective.com/browserslist"
       }
     },
+    "node_modules/bson": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/bson/-/bson-4.3.0.tgz",
+      "integrity": "sha512-LkKKeFJx5D6RRCRvLE+fDs40M2ZQNuk7W7tFXmKd7OOcQQ+BHdzCgRdL4XEGjc1UEGtiYuMvIVk91Bv8qsI50A==",
+      "dev": true,
+      "dependencies": {
+        "buffer": "^5.6.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/buffer": {
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz",
+      "integrity": "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "dependencies": {
+        "base64-js": "^1.3.1",
+        "ieee754": "^1.1.13"
+      }
+    },
     "node_modules/buffer-from": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
@@ -3708,6 +3765,26 @@
         "postcss": "^8.1.0"
       }
     },
+    "node_modules/ieee754": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.2.1.tgz",
+      "integrity": "sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ]
+    },
     "node_modules/ignore": {
       "version": "5.1.8",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.1.8.tgz",
@@ -9601,6 +9678,12 @@
         }
       }
     },
+    "base64-js": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
+      "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==",
+      "dev": true
+    },
     "batch": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/batch/-/batch-0.6.1.tgz",
@@ -9722,6 +9805,25 @@
         "node-releases": "^1.1.70"
       }
     },
+    "bson": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/bson/-/bson-4.3.0.tgz",
+      "integrity": "sha512-LkKKeFJx5D6RRCRvLE+fDs40M2ZQNuk7W7tFXmKd7OOcQQ+BHdzCgRdL4XEGjc1UEGtiYuMvIVk91Bv8qsI50A==",
+      "dev": true,
+      "requires": {
+        "buffer": "^5.6.0"
+      }
+    },
+    "buffer": {
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz",
+      "integrity": "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==",
+      "dev": true,
+      "requires": {
+        "base64-js": "^1.3.1",
+        "ieee754": "^1.1.13"
+      }
+    },
     "buffer-from": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
@@ -11557,6 +11659,12 @@
       "dev": true,
       "requires": {}
     },
+    "ieee754": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.2.1.tgz",
+      "integrity": "sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==",
+      "dev": true
+    },
     "ignore": {
       "version": "5.1.8",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.1.8.tgz",
diff --git a/package.json b/package.json
index d83c8ea..bba02e9 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     "@tailwindcss/jit": "^0.1.18",
     "babel-loader": "^8.2.2",
     "browser-fs-access": "^0.16.4",
+    "bson": "^4.3.0",
     "copy-webpack-plugin": "^8.1.1",
     "css-loader": "^5.1.3",
     "gh-pages": "^3.1.0",
diff --git a/src/Scene.js b/src/Scene.js
index d28f3bf..b75cb3a 100644
--- a/src/Scene.js
+++ b/src/Scene.js
@@ -417,4 +417,4 @@ function addSketch() {
   return sketch
 }
 
-window.sc = new Scene(store)
\ No newline at end of file
+// window.sc = new Scene(store)
\ No newline at end of file
diff --git a/src/drawDimension.js b/src/drawDimension.js
index 4e62e51..29f87d4 100644
--- a/src/drawDimension.js
+++ b/src/drawDimension.js
@@ -155,7 +155,7 @@ export async function drawDimension() {
       }
     )
     this.labelContainer.removeChild(this.labelContainer.lastChild);
-    sc.render()
+    this.scene.render()
   }
   if (this.mode == "dimension") {
     this.drawDimension()
@@ -176,7 +176,7 @@ export function updateDim(c_id) {
         this.constraints.set(c_id, ent)
         this.updateOtherBuffers()
         this.solve()
-        sc.render()
+        this.scene.render()
         ev_focus.target.blur()
         this.updateBoundingSpheres()
       } else if (e.key == 'Escape') {
@@ -217,7 +217,7 @@ export function _onMoveDimension(point, line, initial) {
       point,
       _p1, _p2, null, initial
     )
-    sc.render()
+    this.scene.render()
   }
 }
 
diff --git a/src/drawEvents.js b/src/drawEvents.js
index 06b4030..2e84a5d 100644
--- a/src/drawEvents.js
+++ b/src/drawEvents.js
@@ -78,7 +78,7 @@ export function drawPreClick2(e) {
   }
 
 
-  sc.render()
+  this.scene.render()
 }
 
 export function drawOnClick2(e) {
@@ -136,7 +136,7 @@ let ccw;
 export function drawPreClick3(e) {
   const mouseLoc = this.getLocation(e);
   ccw = drawArc4(mouseLoc, this.toPush)
-  sc.render()
+  this.scene.render()
 }
 
 export function drawOnClick3(e) {
diff --git a/src/mouseEvents.js b/src/mouseEvents.js
index c4d5439..5c6be46 100644
--- a/src/mouseEvents.js
+++ b/src/mouseEvents.js
@@ -219,7 +219,8 @@ export function onPick(e) {
       }
 
       // dont think this would have been possible without redux
-      if (obj.userData.type == 'sketch' && !sc.store.getState().treeEntries.visible[obj.name]) {
+      // if (obj.userData.type == 'sketch' && !sc.store.getState().treeEntries.visible[obj.name]) {
+      if (obj.userData.type == 'sketch' && !this.scene.store.getState().treeEntries.visible[obj.name]) {
         obj.visible = false
       }
 
diff --git a/src/react/app.jsx b/src/react/app.jsx
index 5212cb9..14c6584 100644
--- a/src/react/app.jsx
+++ b/src/react/app.jsx
@@ -11,8 +11,13 @@ import { ToolTip } from './toolTip'
 
 import './app.css'
 
+// export async function serial(...args) {
+//   return (await import('bson')).serialize(...args);
+// }
 
-
+// export async function deserial(...args) {
+//   return (await import('bson')).deserialize(...args);
+// }
 
 let store
 if (process.env.NODE_ENV === 'production') {
@@ -22,6 +27,7 @@ if (process.env.NODE_ENV === 'production') {
   store = createStore(reducer, {}, applyMiddleware(logger))
 }
 
+
 const App = ({ store }) => {
   return <Provider store={store}>
     <NavBar />
@@ -30,8 +36,15 @@ const App = ({ store }) => {
   </Provider>
 }
 
-document.addEventListener('DOMContentLoaded', () => {
+export let sce
+
+document.addEventListener('DOMContentLoaded', async () => {
+
+  const { Scene } = await import('../Scene')
+  sce = new Scene(store)
+  // window.sc = sce
   ReactDOM.render(<App store={store} />, document.getElementById('react'));
+
 });
 
-window.store = store
\ No newline at end of file
+// window.store = store
\ No newline at end of file
diff --git a/src/react/depTree.js b/src/react/depTree.js
index 755b99f..8dcd21b 100644
--- a/src/react/depTree.js
+++ b/src/react/depTree.js
@@ -1,3 +1,4 @@
+import {sce} from './app'
 
 export class DepTree {
   constructor(obj) {
@@ -64,7 +65,8 @@ export class DepTree {
 
       this.allIds.splice(spliceIdx, 1)
 
-      const deletedObj = sc.obj3d.children.splice(spliceIdx + 1, 1)[0] // first 1 elements are non geom
+      // const deletedObj = sc.obj3d.children.splice(spliceIdx + 1, 1)[0] // first 1 elements are non geom
+      const deletedObj = sce.obj3d.children.splice(spliceIdx + 1, 1)[0] // first 1 elements are non geom
 
       deletedObj.traverse((obj) => {
         if (obj.geometry) obj.geometry.dispose()
diff --git a/src/react/dialog.jsx b/src/react/dialog.jsx
index 9b1debd..5cad1e3 100644
--- a/src/react/dialog.jsx
+++ b/src/react/dialog.jsx
@@ -6,6 +6,8 @@ import { useDispatch, useSelector } from 'react-redux'
 import { MdDone, MdClose } from 'react-icons/md'
 import * as Icon from "./icons";
 
+import {sce} from './app'
+
 
 export const Dialog = () => {
 
@@ -21,22 +23,22 @@ export const Dialog = () => {
   }, [dialog])
 
   const extrude = () => {
-    const mesh = sc.extrude(dialog.target, ref.current.value)
+    const mesh = sce.extrude(dialog.target, ref.current.value)
 
     dispatch({ type: 'rx-extrusion', mesh, sketchId: dialog.target.obj3d.name })
 
-    if (sc.activeSketch == dialog.target) {
+    if (sce.activeSketch == dialog.target) {
       dispatch({ type: 'finish-sketch' })
       dialog.target.deactivate()
     }
 
     dispatch({ type: "clear-dialog" })
 
-    sc.render()
+    sce.render()
   }
 
   const extrudeCancel = () => {
-    if (sc.activeSketch == dialog.target) { // if extrude dialog launched from sketch mode we set dialog back to the sketch dialog
+    if (sce.activeSketch == dialog.target) { // if extrude dialog launched from sketch mode we set dialog back to the sketch dialog
       dispatch({ type: 'set-dialog', action: 'sketch' })
     } else {
       dispatch({ type: "clear-dialog" })
@@ -46,41 +48,41 @@ export const Dialog = () => {
   const extrudeEdit = () => {
     dialog.target.userData.featureInfo[1] = ref.current.value
 
-    sc.refreshNode(dialog.target.name, treeEntries)
+    sce.refreshNode(dialog.target.name, treeEntries)
     dispatch({ type: 'set-modified', status: true })
 
     dispatch({ type: "clear-dialog" })
 
-    sc.render()
+    sce.render()
   }
 
   const extrudeEditCancel = () => dispatch({ type: "clear-dialog" })
 
   const sketchDone = () => {
-    if (sc.activeSketch.hasChanged
-      || sc.activeSketch.idOnActivate != id
-      || sc.activeSketch.c_idOnActivate != sc.activeSketch.c_id
+    if (sce.activeSketch.hasChanged
+      || sce.activeSketch.idOnActivate != id
+      || sce.activeSketch.c_idOnActivate != sce.activeSketch.c_id
     ) {
-      sc.refreshNode(sc.activeSketch.obj3d.name, treeEntries)
+      sce.refreshNode(sce.activeSketch.obj3d.name, treeEntries)
 
       dispatch({ type: 'set-modified', status: true })
     }
 
     dispatch({ type: 'finish-sketch' })
 
-    sc.activeSketch.deactivate()
-    sc.render()
+    sce.activeSketch.deactivate()
+    sce.render()
     dispatch({ type: "clear-dialog" })
   }
 
   const sketchCancel = () => {
-    if (!sc.activeSketch.hasChanged
-      && sc.activeSketch.idOnActivate == id
-      && sc.activeSketch.c_idOnActivate == sc.activeSketch.c_id
+    if (!sce.activeSketch.hasChanged
+      && sce.activeSketch.idOnActivate == id
+      && sce.activeSketch.c_idOnActivate == sce.activeSketch.c_id
     ) {
-      if (sc.newSketch) {
-        dispatch({ type: 'delete-node', id: sc.activeSketch.obj3d.name })
-        sc.sid -= 1
+      if (sce.newSketch) {
+        dispatch({ type: 'delete-node', id: sce.activeSketch.obj3d.name })
+        sce.sid -= 1
       } else {
         dispatch({ type: "restore-sketch" })
       }
@@ -88,8 +90,8 @@ export const Dialog = () => {
 
     dispatch({ type: 'finish-sketch' })
 
-    sc.activeSketch.deactivate()
-    sc.render()
+    sce.activeSketch.deactivate()
+    sce.render()
     dispatch({ type: "clear-dialog" })
   }
 
diff --git a/src/react/dropDown.jsx b/src/react/dropDown.jsx
index 7f0fb0f..8fc6a85 100644
--- a/src/react/dropDown.jsx
+++ b/src/react/dropDown.jsx
@@ -3,6 +3,9 @@ import React, { useState } from 'react';
 
 import { useDispatch, useSelector } from 'react-redux'
 
+import {sce} from './app'
+
+
 
 export const DropDown = () => {
   const arr = [
@@ -30,17 +33,15 @@ export const DropDown = () => {
 
   }
 
-  const handleInsideClick = (e) => {
+  const handleInsideClick = async (e) => {
     // handles click inside dropdown, business logic here
     const idx = Array.prototype.indexOf.call(e.target.parentNode.children, e.target)
     if (idx !== -1) {
       console.log(idx)
-      fetch(arr[idx][0])
-        .then(res => res.text())
-        .then(text => {
-          dispatch({ type: 'restore-state', state: sc.loadState(text) })
-          sc.render()
-        })
+      const res = await fetch(arr[idx][0])
+      const text = await res.text()
+      dispatch({ type: 'restore-state', state: sce.loadState(text) })
+      sce.render()
     }
   }
   const fileHandle = useSelector(state => state.ui.fileHandle)
diff --git a/src/react/fileHelpers.js b/src/react/fileHelpers.js
index c8000db..bcd71c3 100644
--- a/src/react/fileHelpers.js
+++ b/src/react/fileHelpers.js
@@ -10,6 +10,8 @@ import {
   fileSave,
 } from 'browser-fs-access';
 
+import {sce} from './app'
+
 // https://web.dev/file-system-access/
 
 const link = document.createElement('a');
@@ -24,7 +26,7 @@ function saveLegacy(blob, filename) {
 
 var tzoffset = (new Date()).getTimezoneOffset() * 60000;
 export function STLExport(filename) {
-  const result = STLexp.parse(sc.selected[0], { binary: true });
+  const result = STLexp.parse(sce.selected[0], { binary: true });
   const time = (new Date(Date.now() - tzoffset)).toISOString().slice(0, -5).replace(/:/g, '-');
   saveLegacy(new Blob([result], { type: 'model/stl' }), `${filename}_${time}.stl`);
 }
@@ -92,7 +94,7 @@ export async function openFile(dispatch) {
   try {
     const text = await file.text();;
 
-    dispatch({ type: 'restore-state', state: sc.loadState(text) })
+    dispatch({ type: 'restore-state', state: sce.loadState(text) })
     dispatch({ type: 'set-file-handle', fileHandle:file.handle })
 
   } catch (ex) {
diff --git a/src/react/navBar.jsx b/src/react/navBar.jsx
index e91894c..4348a6f 100644
--- a/src/react/navBar.jsx
+++ b/src/react/navBar.jsx
@@ -12,6 +12,9 @@ import { Dialog } from './dialog'
 import { DropDown } from './dropDown'
 import { STLExport, saveFile, openFile, verifyPermission } from './fileHelpers'
 
+import { sce } from './app'
+// import { serial, deserial} from './app'
+
 export const NavBar = () => {
   const dispatch = useDispatch()
   const sketchActive = useSelector(state => state.ui.sketchActive)
@@ -20,15 +23,15 @@ export const NavBar = () => {
   const modified = useSelector(state => state.ui.modified)
 
   const boolOp = (code) => {
-    if (sc.selected.length != 2 || !sc.selected.every(e => e.userData.type == 'mesh')) {
+    if (sce.selected.length != 2 || !sce.selected.every(e => e.userData.type == 'mesh')) {
       alert('please first select two bodies for boolean operation')
       return
     }
-    const [m1, m2] = sc.selected
+    const [m1, m2] = sce.selected
 
-    const mesh = sc.boolOp(m1, m2, code)
+    const mesh = sce.boolOp(m1, m2, code)
 
-    sc.obj3d.add(mesh)
+    sce.obj3d.add(mesh)
 
     dispatch({
       type: 'set-entry-visibility', obj: {
@@ -43,13 +46,13 @@ export const NavBar = () => {
     })
 
 
-    sc.render()
+    sce.render()
     forceUpdate()
   }
 
 
   const addSketch = () => {
-    const sketch = sc.addSketch()
+    const sketch = sce.addSketch()
     if (!sketch) {
       alert('please select a plane or 3 points to set the sketch plane')
       return
@@ -59,7 +62,7 @@ export const NavBar = () => {
 
     sketch.activate()
 
-    sc.render()
+    sce.render()
 
     dispatch({ type: 'set-dialog', action: 'sketch' })
 
@@ -74,11 +77,11 @@ export const NavBar = () => {
   useEffect(() => {
     const onBeforeUnload = (e) => {
       if (modified ||
-        (sc.activeSketch &&
+        (sce.activeSketch &&
           (
-            sc.activeSketch.hasChanged
-            || sc.activeSketch.idOnActivate != id
-            || sc.activeSketch.c_idOnActivate != sc.activeSketch.c_id
+            sce.activeSketch.hasChanged
+            || sce.activeSketch.idOnActivate != id
+            || sce.activeSketch.c_idOnActivate != sce.activeSketch.c_id
           )
         )
       ) {
@@ -92,30 +95,31 @@ export const NavBar = () => {
 
   useEffect(() => {  // hacky way to handle mounting and unmounting mouse listeners for feature mode
     if (!sketchActive) {
-      sc.canvas.addEventListener('pointermove', sc.onHover)
-      sc.canvas.addEventListener('pointerdown', sc.onPick)
+      sce.canvas.addEventListener('pointermove', sce.onHover)
+      sce.canvas.addEventListener('pointerdown', sce.onPick)
       return () => {
-        sc.canvas.removeEventListener('pointermove', sc.onHover)
-        sc.canvas.removeEventListener('pointerdown', sc.onPick)
+        sce.canvas.removeEventListener('pointermove', sce.onHover)
+        sce.canvas.removeEventListener('pointerdown', sce.onPick)
       }
     }
   }, [sketchActive])
 
   const sketchModeButtons = [
     [Icon.Extrude, () => {
-      dispatch({ type: 'set-dialog', action: 'extrude', target: sc.activeSketch })
+      dispatch({ type: 'set-dialog', action: 'extrude', target: sce.activeSketch })
 
     }, 'Extrude'],
-    [Icon.Line, () => sc.activeSketch.command('l'), 'Line (L)'],
-    [Icon.Arc, () => sc.activeSketch.command('a'), 'Arc (A)'],
-    [Icon.Dimension, () => sc.activeSketch.command('d'), 'Dimension (D)'],
-    [Icon.Coincident, () => sc.activeSketch.command('c'), 'Coincident (C)'],
-    [Icon.Vertical, () => sc.activeSketch.command('v'), 'Vertical (V)'],
-    [Icon.Horizontal, () => sc.activeSketch.command('h'), 'Horizontal (H)'],
-    [Icon.Tangent, () => sc.activeSketch.command('t'), 'Tangent (T)'],
+    [Icon.Line, () => sce.activeSketch.command('l'), 'Line (L)'],
+    [Icon.Arc, () => sce.activeSketch.command('a'), 'Arc (A)'],
+    [Icon.Dimension, () => sce.activeSketch.command('d'), 'Dimension (D)'],
+    [Icon.Coincident, () => sce.activeSketch.command('c'), 'Coincident (C)'],
+    [Icon.Vertical, () => sce.activeSketch.command('v'), 'Vertical (V)'],
+    [Icon.Horizontal, () => sce.activeSketch.command('h'), 'Horizontal (H)'],
+    [Icon.Tangent, () => sce.activeSketch.command('t'), 'Tangent (T)'],
     [MdSave,
       async () => {
-        saveFile(fileHandle, JSON.stringify([id, sc.sid, sc.mid, treeEntries]), dispatch)
+        saveFile(fileHandle, JSON.stringify([id, sce.sid, sce.mid, treeEntries]), dispatch)
+        // saveFile(fileHandle, serial([id, sce.sid, sce.mid, treeEntries]), dispatch)
       }
       , 'Save'],
   ]
@@ -125,7 +129,7 @@ export const NavBar = () => {
     [FaEdit, addSketch, 'Sketch'],
     [Icon.Extrude, () => {
       try {
-        dispatch({ type: 'set-dialog', action: 'extrude', target: treeEntries.byId[sc.selected[0].name] })
+        dispatch({ type: 'set-dialog', action: 'extrude', target: treeEntries.byId[sce.selected[0].name] })
       } catch (err) {
         console.error(err)
         alert('please select a sketch from the left pane extrude')
@@ -138,23 +142,24 @@ export const NavBar = () => {
     [Icon.Intersect, () => boolOp('i'), 'Intersect'],
     [MdInsertDriveFile, () => {
       if (!confirmDiscard()) return
-      sc.newPart()
+      sce.newPart()
       dispatch({ type: 'new-part' })
-      sc.render()
+      sce.render()
     }, 'New'],
     [MdSave,
       () => {
-        saveFile(fileHandle, JSON.stringify([id, sc.sid, sc.mid, treeEntries]), dispatch)
+        saveFile(fileHandle, JSON.stringify([id, sce.sid, sce.mid, treeEntries]), dispatch)
+        // saveFile(fileHandle, serial([id, sce.sid, sce.mid, treeEntries]), dispatch)
       }
       , 'Save'],
     [MdFolder, () => {
       if (!confirmDiscard()) return
       openFile(dispatch).then(
-        sc.render
+        sce.render
       )
     }, 'Open'],
     [Icon.Stl, () => {
-      if (sc.selected[0] && sc.selected[0].userData.type == 'mesh') {
+      if (sce.selected[0] && sce.selected[0].userData.type == 'mesh') {
         STLExport(fileHandle ? fileHandle.name.replace(/\.[^/.]+$/, "") : 'untitled')
       } else {
         alert('please first select one body to export')
diff --git a/src/react/reducer.js b/src/react/reducer.js
index 211c763..68c868a 100644
--- a/src/react/reducer.js
+++ b/src/react/reducer.js
@@ -3,6 +3,7 @@
 import { DepTree } from './depTree'
 import update from 'immutability-helper'
 import { combineReducers } from 'redux';
+import { sce } from './app'
 
 const defaultState = {
   byId: {},
@@ -38,13 +39,13 @@ export function treeEntries(state = defaultState, action) {
       })
     case 'finish-sketch':
       return update(state, {
-        visible: { [sc.activeSketch.obj3d.name]: { $set: false } },
+        visible: { [sce.activeSketch.obj3d.name]: { $set: false } },
       })
     case 'restore-sketch':
 
-      const sketch = sc.loadSketch(cache)
+      const sketch = sce.loadSketch(cache)
 
-      const deletedObj = sc.obj3d.children.splice(state.order[sc.activeSketch.obj3d.name] + 1, 1,
+      const deletedObj = sce.obj3d.children.splice(state.order[sce.activeSketch.obj3d.name] + 1, 1,
         sketch.obj3d
       )[0]
 
@@ -53,10 +54,10 @@ export function treeEntries(state = defaultState, action) {
         if (obj.material) obj.material.dispose()
       })
 
-      sc.activeSketch = sketch
+      sce.activeSketch = sketch
 
       return update(state, {
-        byId: { [sc.activeSketch.obj3d.name]: { $set: sketch } },
+        byId: { [sce.activeSketch.obj3d.name]: { $set: sketch } },
       })
     case 'rx-extrusion':
 
diff --git a/src/react/tree.jsx b/src/react/tree.jsx
index 039b164..b6baf75 100644
--- a/src/react/tree.jsx
+++ b/src/react/tree.jsx
@@ -6,6 +6,8 @@ import { MdVisibilityOff, MdVisibility, MdDelete } from 'react-icons/md'
 
 import { FaCube, FaEdit } from 'react-icons/fa'
 
+import {sce} from './app'
+
 export const Tree = () => {
   const treeEntries = useSelector(state => state.treeEntries)
   const fileHandle = useSelector(state => state.ui.fileHandle)
@@ -53,19 +55,19 @@ const TreeEntry = ({ entId }) => {
   return <div className='btn text-gray-200 select-none flex justify-start w-full h-7 items-center text-sm'
     onDoubleClick={() => {
       if (obj3d.userData.type == 'sketch') {
-        if (sc.activeSketch) {
+        if (sce.activeSketch) {
           dispatch({ type: 'finish-sketch' })
-          sc.activeSketch.deactivate()
+          sce.activeSketch.deactivate()
         }
 
 
         sketch.activate()
         dispatch({ type: 'set-active-sketch', sketch })
 
-        sc.clearSelection()
-        sc.activeSketch = sketch;
+        sce.clearSelection()
+        sce.activeSketch = sketch;
         dispatch({ type: 'set-dialog', action: 'sketch' })
-        sc.render()
+        sce.render()
       } else if (obj3d.userData.featureInfo.length == 2) {
         dispatch({ type: 'set-dialog', action: 'extrude-edit', target: treeEntriesById[entId] })
       }
@@ -79,37 +81,37 @@ const TreeEntry = ({ entId }) => {
         obj3d.visible = true
       }
 
-      sc.setHover(obj3d, 1)
-      sc.render()
+      sce.setHover(obj3d, 1)
+      sce.render()
     }}
     onPointerLeave={() => {
       if (!mouseOn) return
       setMouseOn(false)
 
       if (obj3d.userData.type == 'sketch'
-        && !sc.selected.includes(obj3d)
+        && !sce.selected.includes(obj3d)
         && !visible
       ) {
         obj3d.visible = false
       }
 
-      if (sc.selected.includes(obj3d)) return
+      if (sce.selected.includes(obj3d)) return
 
-      sc.setHover(obj3d, 0)
+      sce.setHover(obj3d, 0)
 
-      sc.render()
+      sce.render()
     }}
     onClick={() => {
-      const idx = sc.selected.indexOf(obj3d)
+      const idx = sce.selected.indexOf(obj3d)
 
       if (idx == -1) {
-        sc.selected.push(obj3d)
-        sc.setHover(obj3d, 1)
+        sce.selected.push(obj3d)
+        sce.setHover(obj3d, 1)
       } else {
-        sc.setHover(sc.selected[idx], 0)
-        sc.selected.splice(idx, 1)
+        sce.setHover(sce.selected[idx], 0)
+        sce.selected.splice(idx, 1)
       }
-      sc.render()
+      sce.render()
     }}
 
     tooltip= {obj3d.name[0] !='(' && "double click to edit"}
@@ -125,7 +127,7 @@ const TreeEntry = ({ entId }) => {
       <MdDelete className='btn-green h-full w-auto p-1.5'
         onClick={(e) => {
           dispatch({ type: 'delete-node', id: entId })
-          sc.render()
+          sce.render()
           e.stopPropagation()
         }}
       />
@@ -142,7 +144,7 @@ const TreeEntry = ({ entId }) => {
                 obj3d.traverse((e) => e.layers.disable(1))
               }
 
-              sc.render()
+              sce.render()
               forceUpdate()
             }}
           />
@@ -158,7 +160,7 @@ const TreeEntry = ({ entId }) => {
                   e.layers.enable(1)
                 })
               }
-              sc.render()
+              sce.render()
               forceUpdate()
             }}
           />
diff --git a/static/index.html b/static/index.html
index 2577082..7a84266 100644
--- a/static/index.html
+++ b/static/index.html
@@ -23,7 +23,7 @@
   <div id="labels"></div>
   <div id="stats"></div>
   <script src="app.bundle.js"></script>
-  <script src="scene.bundle.js"></script>
+  <!-- <script src="scene.bundle.js"></script> -->
   <script src="solver.js"></script>
 </body>
 
diff --git a/webpack.common.js b/webpack.common.js
index 6198b66..79720c1 100644
--- a/webpack.common.js
+++ b/webpack.common.js
@@ -5,7 +5,7 @@ const tailwindcss = require('tailwindcss')
 module.exports = {
   entry: {
     app: './src/react/app.jsx',
-    scene: './src/Scene.js',
+    // scene: './src/Scene.js',
   },
   output: {
     filename: '[name].bundle.js',