This was a phenomenal entry that is very meta for this jam :) Could definitely be used as a way to teach functional programming/mindset if you carried on!
I liked how you built up your library of functions, but it made some of the puzzles confusing when you didn't have the right functions available. Some of them mentioned "you should solve x puzzles first" which was good, but I think blocking them out would have been more intuitive.
It also would have been nice to have a map to quickly traverse the puzzles.
Overall great entry, keep on making games!