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I sometimes wish Proton was also available on macOS… But Wine is good enough I guess, and still works great for most games :)
Proton is just Wine from Valve. They add their own fixes and patches and whatnot and have an "experimental" branch you can try with games that don't work right away, but it's just Wine. Everything Valve does to Proton eventually makes it way back upstream to Wine proper. One reason Valve may not make it available for MacOS themselves is because they're basing their SteamOS on Linux, and while MacOS and Linux are both Unix "like", MacOS was/is more based on BSD, so the system calls may not always line up or work exactly the same when translating them. I do think however that Proton, or a modified version of it at least, is what Apple's game development kit thingy leverages.
Valve contributes a lot to Wine too
Everything Valve does to Proton eventually makes it way back upstream to Wine proper.
Ah okay, that's nice. I wasn't completely sure about that. At least if that's the case and the projects are so related, I'm wondering why Proton doesn't work on macOS. I could have imagined the code bases to start to differ more and more.
But I mean, I'm fine with Wine (or to be exact the Wine/Crossover version I can get with Homebrew).
What you are looking for is called Whiskey :) There's also a paid app that does it for macbooks with pre-Apple silicon
I looked at Whiskey but as far as I can see, that's just… a Wine wrapper and not related to Proton.
I mean I appreciate the comment, thanks, but I have Wine installed via Homebrew and it works without any real problems.