confirmed that in 3.0.0 it works. Could you implement accepting other cores? or at least carry the core of pcsx_rearmed.hmod that is used in the mini snes and that worked amazing, the mini snes is also based on
The switch retroarch loader uses static librarys for it's cores, so it's not possible right now.
I am not sure if it has some deeper meaning as in some quirks of switch internals or is just a oversight.