That’s what I was thinking. Although my preferred *nix for those old Macs is A/UX (which I have installed on a Quadra 650, an SE/30 and a IIci). I have Tenon MachTen on an LCIII, which also dual boots into Linux (slowly!). The LCIII also has an Atari ST emulator, MagicMac, installed on it.
To complete my retro fix, I’m writing a game using a lot of 68k assembly language on it. Well, when my son isn’t using it for Lemmings, Prince of Persia or Monkey Island!