Hot reloading of in-game structures for the simulation.
The game parses two files, one that has a numbered list of all symbols and items inside the simulation, the other file has cell structures of enzymes and other data. It was hard-coded previously, now I can edit those files and with one command parse them into an intermediary number based code (using a small tool I made for this) and with a console command in-game, I can update the simulation with the new data while it's running. Took a lot of time to set up but this will streamline testing game design concepts.
EDIT: check the thread, now I run the batch file from within the game. It's all one command now