Okay, first I tried to build this for Windows, but I don't really have a decent Windows PC, so I couldn't do that in time. My main development rig is a MacBook, and so that's what I developed this on. My original plan for cross-platform was to compile this to WebAssembly via Emscripten, but I scrapped that because of some shader compatibility issues and I didn't want to deal with that, so I dropped it. So I tried to write the code in such a way it would be cross-platform, but I haven't tested it on anything other than macOS, so I had no way to tell. This is my first jam, so I did the best I could with the time I had. I had tests to prepare for as well, so I tried working on the game as much as I could. It definitely isn't the best code I have ever written by any means.
I'm honestly kinda flattered that you even bothered to look at the code—thanks for that, it made my day. Thanks for the suggestions.