If you have never heard of the PicoPad you wont be alone, Its a build built around the Pi Pico ether the RP2040 or RP2350 and a 2" 240x320 screen, Also you have a micro sd card reader to load software off of. It can run a Gameboy emulator and a NES emulator.
Blog post - https://facelesstech.wordpress.com/2026/02/22/picopad-diy/
Github - https://github.com/facelesstech/picopad_diy
