I stumbled upon this OS in development, meant to let humanity reboot after a technological collapse: Collapse OS.
Reminds me of “The mote in God’s eye” by Pournelle and Niven. An alien civilization has almost destroyed itself so many times, that they leave clues for the next cycle, some of which can only be unlocked after they reach a certain level of knowledge. A fun read.
BTW, a Z80 is not a bad choice to build a new technical civilization on.
Unfortunately it’s going to be more like in Nightfall:)
First, find your Z80 …
still got a small box filled with Z80 + pia’s and such. If only i had more time