An extremely cool Game Boy mod that plays any classic Nintendo game

I made a RetroPie handheld using a Raspberry Pi Zero and an original DMG-01 Game Boy. I modified an original Game Boy cartridge to act as an SD card adaptor for the Pi, so I can have the same satisfaction of putting a cartridge in and powering it on like you would on a regular Game Boy. :) Some pictures of the build are here: Reddit thread with a bunch of Q/A: Feel free to ask any