ah shit. okay., so uh...
turns out the microsd card very likely has all the data ON it, but it's locked behind what is effectively a linux system so my pc can't read it. which means the roms are ON there, but inaccessable so I need... to either boot the Rpi3b+ up with the card in and hope it actually boots (it very likely won't :| ), or I need to find some way to make it think I'm accessing it on a linux machine, and then copy the files across... hm.
What a beauty. Such a well designed case, nothing shifting about or clattering or loose. Well ventilated and robust
(I know it means Editor now, but I still really, really cannot shake the whole "who is this Ed guy really" feeling in my brain)
yeah i'm moving over to chitter.xyz now. Soooo go there! I'm there now.