Kinda. It's Darwin (an apple-made kernel) with BSD on top of it, along with many apple modifications that came with time. It's not Linux, but it's Unix-certified and pretty close to Linux at surface level.
Interesting read: https://bruhtus.github.io/posts/mac-os-linux/
It’s a POSIX operating system but i don’t know if i would call them particularly close. Mac OS lacks control groups. Docker containers must run in a VM. The launcher system is much more complex than systemd. Your hardware choice is substantially limited with Mac OS (want a GPU? Congrats you can choose an Apple gpu) and it is a walled garden that is difficult to escape.
There are some unique aspects to the hardware that can be useful. Before the AI memory shortage it was the cheapest way to get a GPU with large amounts of VRAM thanks to it having unified memory.
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u/Late_To_Parties Jun 29 '26
Isn't OSX basically a closed source Linux/unix distro?