I’ve not posted in a while but I did see this interesting project that combined the hardware for a MorphOS machine (I have the feeling it is one of the bPlan Efika boards, but it may be an apple product, combined with a minimig.
The builder has worked some software and hardware switching to cause a game floppy icon clicked to open on the minimig and switch the video over. The controller signalling is shared somehow as well. Very interesting project. I hope he explains more soon.