
Mikael Persson contributed to the grpc/bazel-central-registry and bazelbuild/bazel-central-registry repositories by developing and upgrading core build modules and addressing compatibility issues. He upgraded the curl module to improve security and maintainability, introduced the Bazel CC Meta module to enable consistent C++ and Python rule validation across platforms, and resolved dependency conflicts by updating libevdev for Bazel 9 compatibility. Using Bazel, C/C++, and Python, Mikael focused on build system configuration, dependency management, and cross-platform presubmit design. His work enhanced build reliability, reduced CI noise, and improved downstream integration, demonstrating a strong grasp of multi-language build pipelines and validation.
March 2026 Monthly Summary – bazel-central-registry Key features delivered: - Bazel CC Meta module (v0.2.0) introduced, with dependencies for C++ and Python rules and a presubmit configuration to verify build targets across platforms. Commit: 38286faec938c511d595693cf06452f5f6358416. - Libevdev/Bazel compatibility fix: Bump libevdev to 1.13.6 to address Bazel 9 compatibility and remove support for Bazel 6 due to dependency constraints; presubmit adjusted accordingly. Commit: ba5a5abfa09a904893bb2e7cefb140a37a19e1ad. Major bugs fixed: - Updated dependencies and presubmit logic to fix Bazel 9 compatibility issues and safely drop Bazel 6 support, reducing CI noise and flaky builds. Overall impact and accomplishments: - Improved build stability and cross-platform coverage for the central registry, accelerating adoption of Bazel 9 features and reducing upstream breakages. - Delivered a reusable multi-language build module that enables consistent C++/Python rule validation across platforms, enabling faster feature delivery with lower risk. Technologies/skills demonstrated: - Bazel dependency management (libevdev, rules_cc) and version pinning - Module packaging and versioning (bazel_cc_meta v0.2.0) - Cross-platform presubmit design and implementation for multi-language builds - Cross-language build target verification (C++ and Python) and platform-agnostic validation
March 2026 Monthly Summary – bazel-central-registry Key features delivered: - Bazel CC Meta module (v0.2.0) introduced, with dependencies for C++ and Python rules and a presubmit configuration to verify build targets across platforms. Commit: 38286faec938c511d595693cf06452f5f6358416. - Libevdev/Bazel compatibility fix: Bump libevdev to 1.13.6 to address Bazel 9 compatibility and remove support for Bazel 6 due to dependency constraints; presubmit adjusted accordingly. Commit: ba5a5abfa09a904893bb2e7cefb140a37a19e1ad. Major bugs fixed: - Updated dependencies and presubmit logic to fix Bazel 9 compatibility issues and safely drop Bazel 6 support, reducing CI noise and flaky builds. Overall impact and accomplishments: - Improved build stability and cross-platform coverage for the central registry, accelerating adoption of Bazel 9 features and reducing upstream breakages. - Delivered a reusable multi-language build module that enables consistent C++/Python rule validation across platforms, enabling faster feature delivery with lower risk. Technologies/skills demonstrated: - Bazel dependency management (libevdev, rules_cc) and version pinning - Module packaging and versioning (bazel_cc_meta v0.2.0) - Cross-platform presubmit design and implementation for multi-language builds - Cross-language build target verification (C++ and Python) and platform-agnostic validation
January 2025 monthly summary for grpc/bazel-central-registry: Delivered a targeted bug fix to the Py proto library itemization issue in foxglove_schemas_protobuf, upgraded the dependency to version 0.2.2, and consolidated the py_pb2 target. All changes were tested and validated to prevent downstream build and code-generation issues, improving stability and maintainability across the mono-repo.
January 2025 monthly summary for grpc/bazel-central-registry: Delivered a targeted bug fix to the Py proto library itemization issue in foxglove_schemas_protobuf, upgraded the dependency to version 0.2.2, and consolidated the py_pb2 target. All changes were tested and validated to prevent downstream build and code-generation issues, improving stability and maintainability across the mono-repo.
Monthly summary for 2024-12: Focused on delivering a high-value feature upgrade to the curl module within grpc/bazel-central-registry and strengthening the build and maintenance foundation. Key initiatives included upgrading to curl 8.8.0.bcr.2 with the latest BoringSSL, adding new build files and configuration changes to improve functionality, compatibility, and maintainability. No major bugs fixed this month; the work aimed to reduce security risk and improve downstream integration through a more robust build pipeline. This work enhances security, compatibility, and developer productivity across dependent services.
Monthly summary for 2024-12: Focused on delivering a high-value feature upgrade to the curl module within grpc/bazel-central-registry and strengthening the build and maintenance foundation. Key initiatives included upgrading to curl 8.8.0.bcr.2 with the latest BoringSSL, adding new build files and configuration changes to improve functionality, compatibility, and maintainability. No major bugs fixed this month; the work aimed to reduce security risk and improve downstream integration through a more robust build pipeline. This work enhances security, compatibility, and developer productivity across dependent services.

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