Comment by steveklabnik

You can't run MacOS in a VM on non-Mac hardware without violating Apple's EULA.

> But what is send to the main repo can be easily scripted to run the CI on every commit.

Sure, this could work. I didn't say it was impossible, just more difficult. You have to build all of this support on top of the system that already does it for you: have your forge run CI on every commit.