Camdiv matches you with a random stranger and puts you both on live video. I wrote separately about the genuinely hard part, which is moderation. This post is about the part people assume is hard and mostly isn't: getting two browsers to see and hear each other. WebRTC handles the media. The interesting work lives around it. Think about the clock the user feels. They click Start, then they wait, staring at their own face, until a stranger appears. Every millisecond in that gap is something we ha