Worked on the denoland/chromium_build repository to address persistent macOS build failures by reverting the solink integration in the apple/linker_driver.py script. This involved removing the object_path_lto action and associated logic, which simplified the linker flow and eliminated a recurring source of instability in the build process. The rollback restored reliability to macOS builds and ensured continuous integration pipelines could validate pull requests without interruption. All changes were thoroughly documented to support future maintainers. The work leveraged expertise in build systems, CI/CD, and scripting, with Python and Shell as the primary languages used to implement and maintain the build infrastructure.