Maybe You Could Add Some Original Gameboy Roms, I Can Help Out With Getting Them If Your Interested Edit: Hmmm Wait, Is That What GBX Is?
GBX is gameboy colour and gameboy mono yes. They will be active once we air the new version of romulation. I merged your posts, no need to double post when there's an edit/modify feature. Edit: it seems that the GBX roms are already active, only the systems further down which are missing then.