I set up the #homeassistant macOS app to monitor when my webcam is on and then set a warning notification on the Inovelli Blue zigbee light switch outside the door. https://community.home-assistant.io/t/control-leds-and-led-effects-on-inovelli-black-red-blue-and-white-series-devices-by-floor-area-group-device-id-or-entity/681056 made it easy!