What if your OpenAPI spec wasn't just documentation, but the actual configuration of your production gateway? For years, API teams have lived with a quiet frustration: the gap between specification and reality. You write a beautiful OpenAPI spec. You configure your gateway (Kong, Tyk, AWS API Gateway) with routes, plugins, and security rules. And then… drift happens. A hotfix bypasses the spec. A plugin gets misconfigured. The documentation lies. The gateway behaves unexpectedly. The contract between frontend and backend fractures. This isn't a people problem. It's an architecture problem. Enter Barbacane , a spec-driven API gateway built in Rust that treats your OpenAPI (and AsyncAPI) specification as the single source of truth . No separate configuration files. No UI clicks that diverge from Git. Just your spec, compiled into a self-contained artifact that runs at the edge with memory safety guarantees and sub-millisecond latency.…