* [opa-envoy-plugin v1.20.1-envoy](https://github.com/open-policy-agent/opa-envoy-plugin) – Extends OPA to enforce fine-grained, context-aware policies for Envoy via the External Authorization gRPC API.

* [AstraCode v0.1.9](https://github.com/nvawntien/go-judge-system) – Self-hosted event-driven online judge platform that coordinates Go-based microservices, Kafka workflows, sandboxed execution, and a Next.js workspace for problem solving and judging.