I had two ideas for Typescript in mind:

1. provide type declarations for the Window.js APIs, and

2. integrate with the Typescript compiler during development (e.g. F5 to reload, run typescript sources "directly", show compiler errors in the console / main window, etc.)

I've just started these discussion on GitHub, please share your thoughts:

https://github.com/windowjs/windowjs/discussions/27

https://github.com/windowjs/windowjs/discussions/28

Does this cover what you had in mind? Are there better ways to support Typescript?

I'd be willing to help out putting together a TypeScript version of this depending on what the author wants to do.