Why waste time spending years reverse engineering. Wouldn’t it have been easier to raise money for such an endeavor? I hope someone will come along in the future in kindergarten, junior high or high school who doesn’t know any better will try something like this. I’m too old. for such a journey.
I get it on Windows systems, at least when someone wants to use Linux-type tooling. But macOS already supports pretty much all of that natively?
For starters, the source code.
Apart from that, for the UNIX part, the source is available for quite a few components:
https://github.com/apple-oss-distributions
notably also the kernel
Strictly speaking, Apple can claim to ship a UNIX® operating system:
kokonokko1337 already said it was good enough to run LLMs, presumably RunSet isn't saying the source code is needed to run an inference server.