I just completed "Restroom Redoubt" - Day 14 - Advent of Code 2024 with Common Lisp!
P1 was pretty easy. But part 2 is very vaguely defined. I'm not proud of my solution to dump each tick to an ASCII PBM and look through the images manually, but it got it done. I had some ideas of what to do to automate it, that might still work with some tweaking now that I know what specifically I am looking for.