This document proposes creating an open source general practice clinical system called openGPSoC to address issues with the current oligopoly market. It would create an open ecosystem with separate data and applications to prevent vendor lock-in. The vision includes open APIs, interoperable data storage, and avoiding per-license software models. The project would develop core components and accredited partners could deliver implementations. It seeks initial funding and support removing barriers to allow new entrants to compete in delivering NHS clinical systems and apps.