I've actually started a second json database for the program for different nutrient profiles and various data that needs to be stored. I'll probably push it later today once it's working. I'm planning on asking a lot more from json, and now that I'm doing it I'm not sure why I didn't do it sooner.
Python's great for working with json because a json file is actually a valid list of dictionaries in python. I've taken to validating it with a python interpreter, since it'll find any mismatched braces or extra/missing commas.
The only issues I have listed on the repo have to do with adding some minor functionality to the GUI layer, which would entail learning wxpython and dealing with the somewhat disorganized wx code I've written. I'm never sure what the best way to clean up the wx code is, but it's always on my mind.