Uses node.js, socket.io and express.js as server. Strokes are stored in mongodb, and cached gzipped for replays. The current state is also preserved on the serv

Uses node.js, socket.io and express.js as server. Strokes are stored in mongodb, and cached gzipped for replays. The current state is also preserved on the server, using node-canvas. An example of the replay feature: http://draw.2x.io/replay#/history/Mulm/1441464748552271684/dl?speed=20&start=11 http://draw.2x.io/replay#/history/Mulm/1441464748552271684/d... This is arguably just a fun project, not aimed at anything commercial at all, so don't expect it to look like such. Worth noting: socket.io currently doesn't support hybi10, the websocket protocol as implemented in Chrome 14 and later. The people behind socket.io are working on that.