Reccomended programs are FCEUX and Oriton. Get hash by opening the program in your terminal/cmd thing. Get HEX_ADDRESS and "TEXT" like you normally would for hacking ROMS. Get table by making it like ...

GitHub is where people build software. More than 150 million people use GitHub to discover, fork, and contribute to over 420 million projects.

The API, written in 6502 Assembly language, programmatically overwrites the compiled NES ROM based on whatever you plug into the the Alter Dark browser page.