Open this URL on a SECOND device. Enter the same 4-digit code on both. They'll find each other over the open internet via decentralized signaling — no account, no server, no API key.
Works phone↔phone, phone↔laptop, laptop↔laptop. Both devices need internet, but data flows P2P after pairing.
First load may take 5-15s while the WebRTC signaling layer warms up.