I’ll start: it became my notes app, because I can have insights on the notes I’m taking. Not an ideal use case, but it is fun for side projects ideas.

Example, I was fiddling with a PGN project idea while waiting for the Christmas dinner: https://chat.openai.com/share/eb975eaa-1c37-413f-a6a0-b17eb2f1bdf3

There is a discussion on Hacker News, but feel free to comment here as well.