AayushK09/Geams ? reverse-engineered prompt

Build me a self hosted video meeting app like a simple Teams or Skype alternative, where people can create a room, share the room ID, and others can join with their name. It should support live video and audio for multiple people, mic and camera on off controls, screen sharing, and a chat panel during the call. I want a clean home page with create meeting and join meeting actions, plus a lobby where people can check their camera and microphone before entering. Make it work fully on my own server with no cloud services, and keep the data local. If you need to look up current docs online for the best way to wire up the real time video parts, do that. Please also include a simple backend for room management and signaling, and make it easy to run locally with Docker or a basic dev setup.