Its in the backlog of notes labeled "blog post ideas" :'(

I think more general tooling to "convert your assorted takeouts into a local database" is higher on my todo list. I have a bunch of python scripts I cobbled together to convert things. If we can get it all into an easy to use database, everybody could do their own things with them more easily.

There is a ton of content about Obsidian! Also it's a fairly intuitive interface. I'd just download it and start messing around, then check out the community plugins. If you really want to dig into notes systems, then you can Google PARA or Zettelkasten, but to me, that quickly begins to devolve into homework and needless learning curves. Just bolt on what you need it for. It's very full featured and if you feel like you're missing something, just search for a plugin.