http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/docs/guide/managing-data.html
Database passphrase By default, database passphrase is random, you have to set it manually to be able to export it. App data backup Here you can allow the system to back up app data, wherever it is configured. A database passphrase must be set to use this.