Canvas Capture Extension

Build the extension from packages/canvas-capture-extension, but always install the unpacked copy outside the checkout so deleting a worktree cannot break it.

Rebuild and install

Locate a Remotion checkout containing packages/canvas-capture-extension/package.json. Prefer the current checkout; otherwise use /Users/jonathanburger/remotion.
Run:
bash
```
.agents/skills/canvas-capture-extension/scripts/rebuild-extension.sh \
  --repo <remotion-checkout>
```
The script builds with Bun and installs the four unpacked-extension files in /Users/jonathanburger/Applications/Remotion Canvas Capture Extension.
Confirm that the installed directory contains manifest.json, background.js, content.js, and receiver.js.

Reload in Chrome

Open chrome://extensions manually in Chrome or Chrome Canary.
Enable Developer mode on chrome://extensions.
If Remotion Canvas Capture already points to the durable directory, click Reload.
If Chrome shows the deleted worktree path, remove that broken entry, choose Load unpacked, and select:
text
```
/Users/jonathanburger/Applications/Remotion Canvas Capture Extension
```
This one-time move changes the extension ID because Chrome derives unpacked extension identity from its absolute path.
Keep loading future builds from the durable directory, never from a worktree-local dist directory.
Enable chrome://flags/#canvas-draw-element and restart Chrome when the experimental HTML-in-canvas API is unavailable.

Do not edit Chrome's Preferences or Secure Preferences files to move or reload the extension, and do not automate the Chrome UI. Let the user use Chrome's extensions page so its integrity metadata stays valid.