Worked on the Bazel and Perfetto repositories to enhance build system clarity and documentation. In Bazel, updated release notes to communicate the deprecation of Bazel 5, aligning messaging with policy and supporting migration planning through a concise Markdown change. For Perfetto, introduced explicit build mnemonics for protocol generation actions using Bazel, improving traceability and maintainability of the build pipeline. Leveraged skills in Bazel, build systems, and Protocol Buffers, with contributions in Python and Markdown. The work focused on reducing ambiguity, streamlining onboarding for new contributors, and enabling easier debugging by clarifying build actions and improving documentation across both projects.