live-demo: https://gvindiol.github.io/web-xr-demo/index.html
https://threejs.org/docs/#manual/en/introduction/Creating-a-scene
https://sbcode.net/threejs/introduction/
https://developer.mozilla.org/en-US/docs/Web/API/WebXR_Device_API/Fundamentals
https://codingxr.com/articles/getting-started-with-webxr-and-threejs/