quote: "GitHub-hosted runners are available with Ubuntu Linux, Windows, or macOS operating systems." source: https://docs.github.com/en/actions/concepts/runners/github-h...

> A lot of folks want to run tests off a GitHub action I.e. on a server somewhere.

Understandable, but also if you're dealing with these sort of projects, you kind of have to setup that sort of automation yourself in an office/someone's house, unless you find some provider that already hosts that sort of thing, like the various Apple/vendor-specific services for that.

It's also not a very new thing really, MacStadium for example been around since like 2010 sometime.

GitHub has been providing macOS runners for a while now.