Electron compatibility

Not on main yet. Running Electron apps on niso with little modification is designed and spiked on the electron-compat branch, in its design document docs/design/electron.md. Nothing below is on main.

The design: Electron’s API is a face over native capabilities. niso would get native capability crates (windows, menus, tray, dialogs, notifications, clipboard, shortcuts, shell, screen, power, secure storage), each a Rust API with a host driver, and @niso/electron would be a JavaScript shim that wears Electron’s API over them. The main process becomes the Node runtime’s main script, and each BrowserWindow becomes a niso page in the same process.

The spike runs Electron’s own quick-start apps unmodified on niso-napi, including the three IPC patterns from Electron’s docs. The hard parts it names are still open: a real window for a page driven from Node, custom protocols with asynchronous handlers, isolated worlds over one DOM, and MessagePorts for VS Code.

To read the design:

git show origin/electron-compat:docs/design/electron.md