Short answer? Yes.
I’m still new to the way this stuff works but I did get pretty much everything running including TG-CD.
I created my action.config file with
Make sure you change the paths to match your setup.
All my game images are .cue with .img but since it launches from .cue files it can probably be other image formats such as .iso, .img, etc but you only want to have the .cue file show up or your menu will get messy.
My BIOS files are kind of all over the place because I wasn’t sure where it was needed. I actually just threw them anywhere that looked remotely right so I have them in 3 locations. I’m not sure which location is the one that is actually used but my guess is it is the first one.
In my specific setup that is:
They are named SYSCARD1.PCE, syscard2.pce, syscard3.pce
I specifically tested with an unpatched version of Rondo and it seemed to work fine.