But that’s not arm on x86 is it? My understanding was that it ‘just’ enables things to work on unsupported intel macs, by enabling stuff that still works on newer Intel Macs.

It’s complicated, but you have the right intuition about it. OCLP re-inserts drivers removed by Apple and patches the OS to enable functionality that doesn’t rely on hardware verification or ARM hardware. According to the devs, that’s about all they are currently able to do with current approaches.

UTM might do what you want but likely not on x86.

https://mac.getutm.app/

> Virtualize macOS as well.

> Run multiple instances of macOS on your Apple Silicon Mac with UTM. This can be useful for developers as well as security conscious users.

> Note that macOS VM support is limited to ARM based Macs running macOS Monterey or higher.

>or ARM hardware

What is ARM hardware in this case? Did you mean the T2 processor on Intel Macs?

I mean both T2 (which I meant by hardware security) and ARM hardware (which means that it relies on either the ARM CPU itself or the way it functions or is implemented). Features like iPhone mirroring apparently rely on hardware support on macOS.