GitHub open-sources Replica for design-system-aware prototypes
GitHub released Replica under an open-source license so product teams can generate interactive prototypes from their own components, patterns and documentation in the Copilot app, with an optional self-hosted Replica Hub for review.
Why it matters: Teams can test generative prototyping against an existing design system and inspect the implementation, but a prototype's visual alignment is not evidence of production accessibility, security or maintainability.