I'd use something that already exists:
- https://life-notes.fr/
- https://github.com/babybuddy/babybuddy
- https://github.com/BabyTracker/baby-tracker
The focus of the latter two is slightly off, but it would work.
Actually, I'd probably not add a use-specific thing unless I needed something specific it offered. I'd just pop up another page on our shared wiki to track things, or put it in a synced note app.
One that's great just to see reactions to the name: leather britches.
But my favorite? There's something very comforting to having a bowl of soup beans. Chili's humble cousin is far more satisfying than it's got any right being.
For a crowd pleaser, though? Cornbread spread with apple butter. Listen to me, now: Do not sweeten the cornbread. Sugar in the cornbread is just cake.