They do? Wow, I didn't know. I'll try setting up a workflow.

I have an Electron app on GitHub which uses their macOS runners to run tests and even package and sign the application: https://github.com/simonw/datasette-app/blob/84903f2ab171fb2...

Wrote up a bit about how that works here:

- https://til.simonwillison.net/electron/sign-notarize-electro...

- https://til.simonwillison.net/electron/testing-electron-play...