After trying a bunch, I’m using Obsidian + <your choice of sync plugin> now. Good thing with Obsidian is your notes are ultimately a bunch of plaintext files, so you can do whatever you want with them, and it comes with clients for most platforms.

Another option is Trilium, it is pretty powerful, and has a webapp so as long as you can access a browser, you’ll be able to access your notes. https://github.com/zadam/trilium

Obsidian is pretty neat. Can use it with Syncthing, although I guess you need Syncthing-Fork on Android now.

Welcome to the rabbit hole of selfhosted note-taking apps. https://selfh.st/apps/?tag=Note-Taking

Unfortunately, this is going to be a bit of a journey. You’ll probably end up going through a few of these options until you find one that works for you and fits your workflow.

I use https://silverbullet.md/ and love it, it’s a bit more than a note taking app, but it’s definitely worth it.

I’ve used Joplin before which was okay-ish (but borked the e2e encryption during an update).

Now I would recommend Silverbullet if you are really keen on self hosting a notes app.

But the notes that work best for me is simply Obsidian + Syncthing-Fork (you could self host a syncthing server), thanks to its sheer ability to adapt to nearly any use case thanks to its plugin.

Results from me asking this 1Y ago: https://lemm.ee/post/4593760

Went with Joplin and using it since.

I’d vote for anytype or obsidian

Anytype has a learning curve, But it has built-in encryption and IPFS syncing provided by the company. The templating system is really slick and the relational aspect is pretty solid.

Obsidian + syncthing fork is a really solid contender. It’s much easier to work with out of the box but the features are a little more generic.

Neither of these are really self-hosted, so much as they are contained in their own ecosystem. You get some measure of higher availability that you have to really work for if you’re really self-hosting a product.

Trilium. You’ll be glass glad you tried it.