[scosman]

For GitHub and most other companies running racks of macOS, the use case is testing/building macOS/iOS software. Even if you could build the stack you describe, I wouldn’t want my tests/builds running on a hackintosh build with unsupported processor and virtualization layers. I doubt there would be a huge market.

[the8472]

If it were 1/10th the price it could be worth moving most of the build process there. If you need the extra validation you could do some final testing on official hardware.

[scosman]

Maybe but it shouldn’t be that big of a difference. M series processors are very energy efficient. Minis aren’t that expensive.

Note: 10x is the multiplier for GitHub actions. So maybe I’m wrong but I’m guessing it’s more capacity than cost and that gap should narrow.