A new Nextcloud app called Joplix is trying to bring Joplin access directly into Nextcloud. It supports viewing, creating, editing, and deleting notes, with changes syncing back to Joplin clients. The project is still early-stage, and the developer recommends backing up your Nextcloud instance before testing. It’s not in the app store yet, but there’s already an install script and updater.

https://discourse.joplinapp.org/t/joplix-a-new-nextcloud-app-to-use-joplin-online/50686