muOS tips, tricks, and shortcuts for RG35XX (H, SP, Plus)

Advanced features, setup and shortcut keys for RG35XX H, RG35XX Plus, and RG35XX SP running muOS.

muOS is faster than the stock firmware and includes Portmaster with allows running native ports of PC games such as Celeste, Shredder’s Revenge, Sonic Mania, and GTA3, which are newer and more demanding than the typical games you’d expect to be able to emulate on these devices. muOS also supports SSH and SFTP for dropping files onto your device wirelessly, and Moonlight for streaming modern games from your NVIDIA powered PC.

I’m using VBA-M for GBA and GBC
Removing the GameBoy Advance overlay for Gameboy (color):
Edit the file /mnt/mmc/MUOS/info/config/VBA-M/VBA-M.opt and remove the overlay from there; add it to a new config file in the same directory called GBA.opt (or otherwise named to match the name of your GBA ROMs directory). After that, the GBA overlay will only show for ROMs in the GBA folder.

Has the stock firmware been updated yet include Portmaster? Let me know in the comments!