[fourseventy]

You should look at https://github.com/TriliumNext/Trilium. It's what I use every day for the things that you mentioned.

[Fervicus]

Thanks for sharing. Are you using it on mobile? How is the experience?

[fourseventy]

I use it on mobile via the web browser, it's pretty good actually. They don't have an official mobile app yet but there might be an unofficial one, I forget exactly.