custom admission limits from &roomcap, up to the server hard max
&roomkey cannot bypass the server hard cap (80 on the official service).
This behavior works on the official hosted VDO.Ninja service (vdo.ninja) and on self-hosted signaling services that support claim-time admission controls.
Security Notes
Treat room keys like passwords; only share with trusted users.
Changing the key rotates who can bypass admission checks.