Dude, cool project! I considered building something like this a couple years ago as the only way in hell I'd ever use it is if it's open source and self-hosted (thanks so much for using AGPLv3!). I ended up stuck in analysis paralysis, so I'm super impressed :-)

Ha, thanks. It's hard, so no shame for being "stuck". I've iterated on this for over a decade at this point. Still more evolution to come... but I really want this for my family.