I want to add systems like CPS1, CPS2, CPS3, CAVE, etc all using mame emuulator and roms, but i want their own system to show up on Emulationstation. I also want systems for hacked NES SNES, HBmame, etc. All using emulators that already work on retropie, just their own system wheels i guess.
How do i do this?
Biggest issue i think i will run into is creating the themes for them.