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Developer details zero-step device pairing method using public IP hash and IPv6 bug fix

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A developer created a web app called Clipboard Share that transfers data between devices without manual pairing. The system groups devices using a hashed version of their shared public IP address as a room identifier. This approach initially failed for IPv6 addresses where devices on the same network received different room IDs. A bug in the code treated formatted variations of the same IPv6 prefix as distinct addresses. The developer corrected this by normalizing IPv6 hextets to ensure consistent room assignment.

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