Pi still makes the Pi Zero for like $15 that runs linux, if you want a cheap low power general computer running linux
replyAt least where I live, the Pi Zero is pretty much impossible to get, and when it's available, it's more like 60$.
replyWhere do you live? I'll send you a Pi Zero if you need one
replySending would probably cost the difference, but check first where the gp lives.
replyYou can run any OS on any Pi board other than the pico
replyBy the way, I got a zero 2W a few months ago and it costed me 47€