EXTRACTING GAMEBOY ROMS FROM PHOTOGRAPHS OF THE DIE

Summary from the TLDR Web Dev newsletter

This tutorial goes over mask ROM recovery, in which someone takes photographs of the ROM of a Nintendo GameBoy and ends up with an actual ROM file that can be played through emulators. He goes through how he photographs the ROM, extracts the bits from the photograph, recognizes the bits, and fixes mistakes. He even provides a CLI to automate various tasks and has tips on decoding the ROM file.