I would prefer to stick to the bounds of good taste than a hard cutoff. IRIX on SGI equipment from the 1990s was 64-bit. It would be a shame to not post anything for that kit because it is 64-bit. iPod is on its way to be vintage / retro since. And what about the revive 800xl built totally on modern FPGA kit - an Atari with native HDMI.

At this point my post is going to tumbleweed along as it has not received a single upvote and will never see the front page. And I am ok with it if that is the will of the site.