Hi! As the game has started as a jam game, modding was not really thought about. It's a Unity game so it is doable to decompile the C# and modify it, but it can be a lot of work.
I could be convinced to go digging for the original game sources and share those if there is enough interest, but tbh i don't think there is much of a community that play this game that I know of, just a few people that did get into it for a while. But maybe I'm missing a private community? Idk
I would love to make another game inspired by this one but more ambitious, I tried to at the time but as always it's hard to launch into a multi-year project when you are not sure people will be there to play it at the end, so I moved on to smaller project
Anyway, thank you a lot for liking this game!