N-STREAM

The problem was simple: watch YouTube videos with someone remotely without manually coordinating play and pause over a call. Most workarounds break the moment one person seeks or pauses.

N-Stream uses rooms. Users join via a shared code, and every playback event (play, pause, seek) is broadcast over WebSocket using Socket.IO. The server holds the current video state, so users who join mid-session sync to the right position instead of starting from the beginning.

The frontend is built with Next.js and uses react-youtube to control the player programmatically. The separation between the player UI and the socket event layer keeps the sync logic clean and independent of how the video is displayed.