Worked on improving build stability for the pytorch/pytorch repository by addressing a persistent macOS build failure. Focused on restoring the executable permission for the build_host_protoc.sh script, which resolved issues encountered when CMAKE_OSX_ARCHITECTURES was set for cross-architecture builds. Utilized shell scripting, Git, and CMake-based build configuration to implement and validate the fix through a pull request workflow. This change enhanced the reliability of continuous integration pipelines, reduced developer friction, and ensured consistent, reproducible builds across macOS environments. The work demonstrated attention to build automation and DevOps practices, contributing to faster feedback loops and improved developer productivity.