Apple mentioned the secret x86 build of OS X during the keynote when they announced that transition [1], I think they alluded to it in one of last year’s keynot

Apple mentioned the secret x86 build of OS X during the keynote when they announced that transition [1], I think they alluded to it in one of last year’s keynotes too. That said, you would expect them to have booting, installation, and wiping as one of the first things built in the macOS-on-ARM porting process. [1]: https://youtu.be/ghdTqnYnFyg?t=265 https://youtu.be/ghdTqnYnFyg?t=265