I'm currently evaluating the possibilities using Circuit Sword as a host for writing music in SunVox.
SunVox runs very nicely on the CM3, and the obvious way to do it is certainly hooking up a keyboard and mouse since this is the way to write music in SunVox.
However, it would be really nice to be able to remap the D-Pad and buttons to keystrokes and the Analog Stick to mouse cursor movement, L/R buttons to left and right click.
I guess this could be accomplished by reprogramming the Arduino but before trying that I'd go for a less disruptive solution firsthand

I saw the thread on how to remap things for Kodi that suggested re-mapping in Kodi. Unfortunately this is not an option as SunVox doesn't seem to support Game Controller input.
Any suggestions on how to approach this are welcome!