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.
I personally use Markor on Android and (neo)vim on Linux. I sync the note files using rsync (but syncthing is totally viable also).
It’s probably not the solution you want but thought I’d mention it for others interested.