Stop the session when moderator leaves?

Is there any way to close the session when the moderator leaves?

New Prosody modules to control a tokenized room

These are for tokenized system but it’s possible to customize

can you explain “tokenized system” to me?

The keyword is JWT. This is a mechanism to moderate clients’ rights using a client side token. This is not essential for your goal but the linked solution is only working on a tokenized environment.

The problem when there is no authentication system, is there is always a moderator in the room. When a moderattor leaves, someone else becames moderator automaticly.