This morning I made this while sipping coffee, and it solves a real problem for my gf: https://github.com/kirubakaran/xmldiffer Sure it's not enormous, and it was built from scratch, but imho it's not a trivial thing either. It would've taken me at least a day or two of full time work, and I certainly don't have a couple of days to spare on a task like this. Instead, pair programming with AI made it into a fun relaxing activity.