If they have Peertube installed, all they need to do is install the Hive-Tube plugin from their admin console now :)
Check out https://Hive-Tube.com
From the documentation:
You can simply install the Hive-Tube plugin by logging into your Peertube instance as an administrator. Then please go to Administration -> Plugins/Themes, search for the "Hive" keyword and click "Install".