Recommendations for a FOSS Cross-Platform Note-Taking Application

https://lemmy.sdf.org/post/2057363

Recommendations for a FOSS Cross-Platform Note-Taking Application - SDF Chatter

Up to now I’ve been using Simplenote, which has a Linux client (but also Android & iOS) & supports live collaboration on notes. However, Simplenote hasn’t had a meaningful update for a long time, & it’s recently been behaving strangely, e.g. notes undeleting themselves, line duplications & undeletions. Can anyone recommend an alternative? Spinning up an ownCloud/nextcloud instance just to use Joplin feels a little overkill. I stumbled across turtl, but the project looks abandoned.

Joplin + Syncthing is great, as other people suggested.
I keep it even more simple: I write stuff in markdown, share my .md files with Syncthing and edit them with markdown editors.
The best I’ve tried so far for Android is Markor, while on Linux I either use Ghostwriter (on KDE) or Marker (on Gnome)
GitHub - gsantner/markor: Text editor - Notes & ToDo (for Android) - Markdown, todo.txt, plaintext, math, ..

Text editor - Notes & ToDo (for Android) - Markdown, todo.txt, plaintext, math, .. - gsantner/markor

GitHub
If you want a really fancy markdown note-taking app try obsidian.md. Unfortunately not FOSS, but free for non-commercial use.
Obsidian - Sharpen your thinking

The free and flexible app for your private thoughts.

Obsidian
I’ve been using a Foss alternative called Logseq that’s very similar.
A privacy-first, open-source knowledge base

A privacy-first, open-source platform for knowledge management and collaboration.

logseq
Does logseq have tagging and an ability to query like data view in obsidian?
It’ll automatically show tagged blocks from other pages in a special section. I don’t know if it has anything as advanced as data view though, I haven’t felt the need for anything other than displaying references. The plugin ecosystem seems decent, but I mostly just use basic functionality.