I was about to throw some money down their way, but apparently the steam version does not work on Mac M1/M2. I'm too young/uninitiated/whatever/visually_oriented to play the older version.
I bought the Steam version and run it in Wine on both an Intel and M1 Mac. I ended up refunding the Steam version and bought it on itch.io so I could just directly download the game files and updates instead of having to mess with Steam inside Wine (the Mac Steam does not allow you to download Windows files). Also you get a Steam key with itch.io, so when they release a proper Mac version I can add it to my library still.
But you need the actual files downloaded obviously. So you either have to have a PC where you can download the game files from Steam (Windows VM works too) and then copy over to your Mac. Or you can buy the game from itch.io (it's the same but you also get self-extracting archive + you get a Steam key as well) https://kitfoxgames.itch.io/dwarf-fortress