So I built Piruetas (it means pirouettes in Spanish - she chose the name btw).
It's a day-per-page diary with rich text editing, drag-and-drop image uploads, auto-save, public share links, and a clean mobile UI. It can be set up for Personal or Multi-user usage via docker compose deployment.
She seems to like it so I decided to give back to the community and make it available for everyone (after some QA)
Live demo: https://piruet.app (login: demo / piruetas — data resets every 30 min!) GitHub: https://github.com/patillacode/piruetas