I'm wondering what the step-by-step would be for installing, say, gpSP for GBA emulation. The emulators we have are getting close, but the only way to play Megaman Zero games at full speed is still via PSP mode. Unfortunately, I remember nothing about PSP homebrew installation as my PSP came to me hacked and loaded with all the emulators I could want. I would prefer the GBA emulators running natively, either the RetroArch cores or mGBA, but since it just is not there yet, I need to go this route. So anyway, how install this and potentially other PSP homebrew?