This mod adds a craftable item, which will permanently fertilize berry bushes/grass tufts/etc. This is the first mod I made for DST. The primary reason I made it was because I was tired of having to constantly re-fertilize the transplanted berry bushes in some of the long-term games I played, and the only other mod that did something similar to this was, as many of the mods for this game are, ‘overpowered’.
This was my first experience with lua programming, and I had to spend a considerable amount of time deciphering the game code, which is almost entirely in plain-text lua files. Fortunately, Lua is similar enough to Python, which is the language I was learning at the time. I eventually settled on adding a new item which would set the ‘transplanted’ property of a plant to false. It is currently my second most popular mod, after Tools Are Fuels.