I don't know if anyone's mentioned this yet, but the itch app on the mac won't show an install option. I can run it if I download from the browser, it's just harder to keep track of updates.
It also seems that the mac version doesn't show up as a platform this game can run on, even though you have a version for it
Again, I can run the game on my mac book, it just won't install via desktop app and it doesn't show up as compatible with MacOS