A bit buggy but that's to be expected from a jam game. Very annoying that the middle two boards don't have solutions for passing all the colors through at the same time. It makes the final challenge go from figuring out a giant interconnected puzzle to a slog of waiting for each color to pass through those two boards one at a time and then changing the tracks for the other color. Fun concept though, it would be cool to see a version of this where everything chains together cleanly at the end.

This is the best web game I've played!