Show HN: Copperhead – Hardware as Fast as Software

Copperhead is an open-source AI engineering platform that automates circuit board design, verification, and production by running AI agents through eight sequential stages, each with validation gates that prevent errors from being committed. The platform integrates with KiCad and uses Claude AI to handle tasks from initial specifications through schematic design, layout, and firmware generation, with users able to run it locally for free or pay for hosted team collaboration. The system has been proven through real hardware projects like the Open Telegraph ESP32-S3 Morse key built entirely using this workflow.