> I worked on it a ton a couple years ago. Now I'm too busy. The current codebase is stuck in development hell on some branch of trying to make the big preprocessing sweep be more efficient (with multiprocessing). That's plausibly not even worth the complexity, at least the way I'm currently doing it.

Huge props for finding the time to at least publish it in its current state. I have lots of projects in various stages of abandonment where I keep telling myself that I'll come back to them eventually, even though deep down I know that realistically that's not going to happen. So it's inspiring to see someone persevere a bit more than that.