Demo: https://eyaler.github.io/LordTubeMaster/#dQw4w9WgXcQ
Note as of June 2024 this is only supported on Chromium desktop.
Enable graphics/hardware acceleration browser setting to reduce lag. Specifically for the WebGPU example - make sure you are using a discrete GPU.
For fullscreen zoom of output (by right-click) enable: chrome://flags/#element-capture (Google Chrome), or
chrome://flags/#enable-experimental-web-platform-features (Chromium). You can browse the effects with Alt+↑ and Alt+↓