It's not about the looks, if you want an OS that looks like OS X you can install ElementaryOS (pic related)
elementary.io
What I mean is functionality. Like being able to draw a selection of a clip in iMovie and then drag&drop it into iDVD where the thumbnail goes was amazing. It was like the Unix philosophy of "do one thing and do it well" plus the the Unix concept of stringing all those applications together, but on a GUI level instead of on the CLI. It's the little things that were thought out so well.
You mean the OS that OS X is built upon? Without Cocoa Darwin is really barebones, I have no idea what I would do with that unless I was trying to make my own Darwin-based distribution. You will barely be able to run any Mac applications if you don't have the Cocoa libraries. Maybe you could use GNUStep as a Cocoa replacement.
gnustep.org
You know, now that I think about it, a Free as in Freedom replacement for OS X that is compatible would be a really cool thing.
Correct, they are focusing on their proprietary Metal API instead. They don't even support Vulkan.
So what, Apple ships Metal. Both are proprietary shit, they only reason why people develop
for DirectX is because Windows is so prevalent.
