NPC AI is all moved into mecanim state machines now, which makes it faster to set up new enemies. That's great because my work study students can crank those out pretty fast. Had a scary problem where a lack of FixedUpdate on AnimatorStateBehaviour made speeds wacky.
It's pretty incredible how much I'm still learning from just doing the basics. The low-pressure of this project really helps to facilitate learning and exploring, rather than just cranking out features to hit deadlines. Hobby game dev is lovely, just slow.