This is such a fun little concept, and it's really polished! The whole interface is really tactile and satisfyingly "juicy," the keyboard clacks were a really nice touch.
I especially would have loved this as a kid, when I was learning how to code. Would be great for anyone who's willing to learn a bit of basic coding, but with some online low-score charts (smallest program size and least instructions) it could be really fun for expert coders too :)