hello people. I had a question about the libraries that come with the book (HTDP) 2htdp/universe and 2htdp/image. Are these libraries that you would use in production? Or at least as a prototype implementation of a game.

Depends on the type of game.

well it is simple enough

like a puzzle game

It will be fine to use 2htdp/image then.

ok, cool! I find exciting the universe library, I think it is a very deep abstraction. Associated with modalities