Dandori Desktop is a modding tool for the Nintendo game, Pikmin 4 to enable users an easier time creating edits to the game.
It reads and writes to the decoded files dumped from a ROM of the game to display entities on each of the game's maps, and exposes their configuration and parameters for editing in a GUI, rather than trawling through JSON files that are 10s of thousands of lines long.
As the sole developer, and first person to reverse parts of the game this thoroughly, I've spent hours staring at bytes and pieces of game config to work out how to read and edit raw data, enabling the community to modify heaps of new aspects of the game.