Allow hiding rooms via custom config

php/servers/servers-rooms.php

@@ -246,6 +246,7 @@
 		public function is_off_record(): bool {
 			return (!$this->read && !$this->write)
 				|| $this->is_testing_room()
+				|| LocalConfig::get_instance()->is_hidden_room($this)
 				|| in_array("unlisted", $this->string_tags);
 		}
 

php/utils/read-config.php

@@ -126,6 +126,10 @@ class LocalConfig {
 		return $this->get_bool_override_value($room, 'stickied');
 	}
 
+	public function is_hidden_room(CommunityRoom $room): bool {
+		return $this->get_bool_override_value($room, 'hidden');
+	}
+
 	public function get_known_servers(): array {
 		return $this->known_servers;
 	}