I have tried to find it in nightly latest, I have used the built in core downloader, there is just no sign of a PSP core anywhere, I have followed the assets install to system folder etc etc, still no sign of PSP core, has it been removed ?
Setting up the system folder won’t affect the core downloader at all. I know core downloader uses some info from core info files, so you could try updating your info files and see if you can spot the PSP one.
There’s a few cores that are also not on their new server as of yet (dolphin, for example) because the servers not fully set. There’s an article on the libretro homepage that explains that. That all being said I’m not sure if PSP is included in those.
Yeah there is no PSP on PC