This article provides a step-by-step guide on how to live stream video from a canvas using WebRTC and React. It explains that anything you can put on a canvas can be sent as video into a WebRTC session, simplifying the process of building real-time applications for sending canvas video. The tutorial covers capturing a canvas using captureStream() API, creating a MediaStream from the canvas, and publishing it to your LiveKit session. It also mentions that this technique was used in their VTuber streaming app.