May 2025: Key Bazel build enhancements in protocolbuffers/protobuf and bazelbuild/rules_rust to improve interoperability and consistency. Key features delivered: 1) Enable ProtoInfo provider support for cc_proto_library in protocolbuffers/protobuf, allowing proto definitions from non-proto_library sources to participate in the build (commit 639f1c9d21a80a06749528759d44c8c59fd9b5b3). 2) Enforce toolchain default Rust edition in Bindgen within rules_rust, standardizing edition usage by deriving the default from the Rust toolchain when not explicitly specified (commit a5b96c7d16f6f61ab0c6a580a1f86f3f9c96db54). Major bugs fixed: none reported this month. Overall impact: reduces coupling between build rules and proto definitions, standardizes Rust edition usage across toolchains, and improves cross-repo build reliability. Technologies/skills demonstrated: Bazel provider model, ProtoInfo, toolchain integration, Rust Bindgen, cross-repo collaboration.

December 2024 monthly summary for grpc/bazel-central-registry focusing on the Open62541 OPC UA library integration. Implemented the library integration into Bazel, built Bazel rules for the library, wired dependencies and code generation scripts, and applied patches to adapt Open62541 for BoringSSL and to ensure proper build integration. This work establishes a stable OPC UA integration path and lays the foundation for enterprise-grade OPC UA support in the central registry.