ClassicHasClass
Behold: the Guru of GNU! (Photo by Habib Mhenni, Wikimedia Commons, CC BY-SA 3.0.) True enlightment only comes from a truly free computing experience, probably! And while there is no nerd who lacks an opinion on Richard Stallman personally, likewise let none claim he does not practice what he...
Manu
Connected via serial console. Does not have a package manager, web or ssh server, but can play tetris in the terminal (bsdgames in Debian have the same tetris version packaged).
ClassicHasClass
Most of you still using a Power Mac as a daily or occasional driver are probably either running Linux, Tiger or Leopard, and a minority on OS 9. Despite many distributions no longer shipping 32-bit PPC installs, Gentoo Linux still has specific support along with a few others, as does Adélie Linux...