In June 2025, L47kok developed cross-language build support and Cel-spec integration for the grpc/bazel-central-registry repository. They upgraded the Bazel Central Registry to Cel-spec 0.24.0, configuring Bazel dependencies and establishing Python and Go toolchains to enable interoperability between components. Their work included enhancing the CI pipeline by adding presubmit checks that validated builds across multiple platforms and Bazel versions, improving reliability and consistency. Leveraging skills in Bazel, build systems, and CI/CD, L47kok focused on robust dependency management and workflow automation. The project addressed the need for seamless cross-language builds, laying groundwork for future extensibility and maintainability.