Ran across this project https://github.com/abiliojr/esp_8_bit
Pretty fun little emulator system. But it has some limitations. It required you to only have one emulator compiled and installed at a time. I updated the code base to add a menu. You can now select the system you want to play. And then pick a game for that system.
Also designed my own custom pcb for the device. Giving it a nice hdmi stick type form factor.
Found an hdmi output board, wired to the processor giving me the hdmi output.
