Overlay

OBS / vMix: Add a Browser Source → paste the URL above → set width/height to match your output resolution → tick Allow transparency if using Transparent mode above, or add a Chroma Key filter if using a colour background.

Cross-device control (phone → TV): Run node server.js on the same computer that serves the files. Use the server's IP address in the URL above. Both the control panel and the Browser Source must connect via http:// (not file://) for messages to relay through the WebSocket server.