Using index.html you can Display Webcam feed in Picture-in-Picture mode LIVE/localhost camera on laptop or mobile. Works in firefox and chrome
curl https://raw.githubusercontent.com/efxtv/PIP-html-live-camera/main/index.html >index.html
npm install live-server -g
npm audit
npm audit fix
live-server
sudo apt install npm nodejs
npm install live-server -g
npm audit
npm audit fix