there was a CPU spec mining community few years ago
as in "speculative mining", mining brand new cryptocoins, spending monies on electricity and speculating on the price for "wen listed on exchange" or "wen coinmarketcap"
they were still being traded in a P2P OTC manner before the listings so could also make some monies that way, if the P2P price was skyrocketing and the listing meant price dumping then trading OTC before the listings was the way, sometimes the moon was happening after the listings too and sometimes it never happened so, speculative af lol
the rigs and setups in that community were interesting, like, multiple motherboards & CPU plugged on a single big PSU, no computer case, setups with ATX splitters and whatnot, solar setups, interesting thingies
and then XMR finally was rdy to fork over RandomX, so mined a bit on GPU briefly right before the switch when it was still on cryptonight and then went full XMR maxi with RandomX (while still having some fun solo-mining here and there some XMR forks)