odinhonicomenwhereby I enjoy the concept of not letting people into the room until I am ready to let them in. If the people in the ”lobby” have entered a password before getting to the lobby I would know the right people are there. In this case the ’knock’ could of course be automated.
odinhonicomenwhereby As I see it the Lock/Unlock of the room would work the same as it does, but the room owner could optionally choose to also add a password, and that would be an extra layer of security. The problem/risk is if the room link gets shared and you have unwelcome people knocking.