Some useful notes on writing Figma plugins.
Introduction
Use the Plugin Quickstart Guide
Basically just needs a npm install to setup.
Note that because Cursor uses a key-binding for open browser you need to remove the ⇧⌘b keyboard shortcut via Cursor > Settings > Keyboard Shortcuts.
Then, ⇧⌘b should open the 'select build task to run' options and run tsc: watch - tsconfig.json.
The code.ts should compile to code.js on saves.