I use {reactJS,socket.io,simple-peer,nodeJS}. you can skip the reactjs. There are a lot of tutorials available for video chat apps using webrtc+socket.io. https

I use {reactJS,socket.io,simple-peer,nodeJS}. you can skip the reactjs. There are a lot of tutorials available for video chat apps using webrtc+socket.io. https://appr.tc/ https://appr.tc/ is open-sourced but not actively maintained.