Haha yes by coincidence I encountered it last night. A keyboard would really be useful for it but I don't think there's a way of using one. Connecting a USB keyboard to the dock doesn't work. Maybe connecting one to the switch itself will workStill hoping to see a port of uae4arm (more modern than ye olde uae4all).
There's a dosbox retroarch core in RetroNX apparently @Nightfox_