I've been using Joplin for a while now, syncing via Nextcloud.

One tip: I set up a cronjob to export into a Git repository so I have a complete history. The core of the script is:

  joplin sync
  joplin export --format=raw "$tmpdir"
  # Rsync that directory to the repository
  # This deletes files that no longer exist in the current export.
  /usr/bin/rsync -a --quiet --delete --exclude=.git "$tmpdir/" "./"
  /usr/bin/git add -A