The repo is finished for the SNES Advanced boards. This is the updated version of my existing SNES boards, but this time it's fully open sourced and in KiCad, complete with clean schematics to boot.

I haven't tested it yet, but I'm getting the boards in the mail soon.

https://github.com/MouseBiteLabs/Super-Nintendo-Cartridges/tree/main/Advanced%20UV