Just wanted to say I really appreciate your work. I’m setting up my Raspberry Pi(s) for the same reason you are – a retro gaming museum 🙂
You may have covered this already but I thought I’d mention it just in case.
For this project you’ll definitely want to disable any emulator commands that open menus (eg the command to launch LR-Config in Retroarch emulators). I’m also making sure this isn’t needed by programming in savestate and loadstate commands.
I want the kids to be able to play the Final Fantasy series when they’re older, including the PSX classics which are multi-disk systems. I found a good guide on this forum for combining and compressing these titles into one image and then adding a disk-swap command.