Worked on reliability and modernization across two repositories, focusing on build system improvements and formatting capabilities. In aspect-build/rules_lint, combined copts and cxxopts attributes within the Bazel build system to streamline compiler argument handling, resulting in more robust and reliable builds. For grpc/bazel-central-registry, introduced a use_fmt flag to enable optional C++20 std::format support in spdlog, allowing projects to select between std::format and the existing fmt library. This update included new build configurations and comprehensive tests to ensure compatibility. The work demonstrated strong skills in C++, Python, and build system development, with concise, maintainable commits and clear technical focus.