[rbanffy]

It's not enough to have an equivalent capability - if you want a Hackintosh, you'll need to present those capabilities in a way that fools macOS into believing it's running on supported hardware. For now, ARM has been limited to the low-power desktop/mobile and high-end server niches. Apple Silicon will go for the space between as well.

OTOH, Apple is smart enough not to tightly marry its software to a given hardware architecture - they were compiling Rhapsody for Intel from day one and a lot of iOS is directly lifted from macOS. Its lineage started running on 68K, then HP-PA, SPARC, x86, then mostly PPC, then mostly x86 again, and now it'll switch to mostly ARM.