Thank you!
I don't know if I have much insight for you. I don't think I had a process for this project that I would know how to distill into something helpful/reusable for others (or even myself).
I don't know that I could recreate a similarly good game with similarly interesting levels in general. I think this was just a combination of a good jam theme, a simple enough idea to implement in a day, and 8 extra days to think of puzzles and to polish. And even then, I've been kicking myself since submission for all of the changes I've wanted to make after the fact.