tangent but inspired by this: what about a retro-console development board? like saturn or playstation, would that be hard to do?
obviously this is way over my head, would be great if LLMs can help noobs
I think this is something like that, https://github.com/webhdx/PicoBoot. RP2040 for the Gamecube. Mostly they are using it for booting homebrew but I don't see why you couldn't edit the code and do anything you want with it.
Well, mister has psx core.
https://github.com/MiSTer-devel/PSX_MiSTer