Check out https://www.giuspen.net/cherrytree/, lightweight note-taking app with interesting scripting function built in.

Even if that’s not your cup of tea, it has the option to save your notebook to a single sqlite file, so I take that as good enough proof it’ll work for your similar purposes as well.

Other backers include OpenAI CEO Sam Altman.

WTF, no, this is worse in every way. So instead of being involved with the people and topics I choose, it’s instead left up to an algorithm? Somehow even more opaque than usual because of AI involvement.

This isn’t solving any problem, this is yet another mask to push content in front of people.