# Conflicts: # install.ps1 # install.py # install.sh # install/launchers/index.json
RetroBIOS for muOS
Copy RetroBIOS.muxapp to the card, open it from muOS's archive manager to
install it, then start RetroBIOS from Applications.
It checks the BIOS folder (/run/muos/storage/bios) against the files its
emulators read and installs the missing ones: downloaded with a network
connection, or from a pack copied to the root of the card without one.
It runs in muxterm, muOS's terminal. With PortMaster installed, gptokeyb2 turns every button into a key and muxterm is told to leave the pad alone, so each button is sent once: D-pad to move, A or Start to choose, B or Select to go back, X to tick a system, Y for the options. L1 and R1 do nothing in muxterm, which keeps Page Up and Page Down for its own scrollback: Left and Right on the D-pad page a list instead. Hold Select, then press Start to quit. Without PortMaster, muxterm reads the pad itself (Y then ticks a system) and Menu closes it.
With no button pressed on its first screen for 5 minutes, it closes by itself: a pad the system cannot read then never leaves it stuck.
Not tried on a device yet: the icon, and whether muxterm honours SDL's controller allow-list as SDL 2.30 does.