My arcade currently consists of 5 arcade machines, and I'd like to find a solid state solution for 3 of them - basically so I can power it off without worrying about screwing up the computer
Galaga - Currently running a PC with Mala as the frontend. I'm considering putting a 60-n-1 board. I don't love the interface of the 60-n-a and curious what other options are out there. I saw the Arcade$D, and it's a little too pricey for me.
Mame machine - this is the mame machine in the middle. Is there a Pandoras Box type solution that allows a trackball? This plays about 50 games, but a few of them are trackball games.
Star Wars - this is running a PC. It only plays a few games - Star Wars, Empire Strikes Back and Paperboy. I'm not sure what solutions I have to use a Pi, or if there is another option. It's an original Star Wars Yoke and a Ram Controls USB adapter
The Gorf is running a Pi and boots directly into Gorf. This one is fine as is.
The Defender (not pictured) is waiting for the graphics to arrive. It's running a 19-n-1 with all games besides Defender removed. It's fine as is too.