The docs seem to say that there are 12 (twelve!!) different builds of MAME included in this thing? And I'm supposed to mix-and-match ROM sets with emulators somehow? Or it magically figures it out? Or something?
Let me ask a simpler question. Say I want to start with just a small set of early 80s games, let's say, Star Wars, Tempest, Millipede, Pac-Man, TRON, Joust. Can someone point me at the proper archive.org URL to download that works with "RetroPie 4.1.1, RPI 4/400"?
And also what folder do they go in, and do I have to edit config files or some shit?
Do things work completely differently for the vector and raster games, he asked with great trepidation?