Worked on the iree-org/iree repository to enhance build system reliability and improve developer documentation. Addressed a header-source misclassification in both Bazel and CMake, ensuring header files are correctly included in distribution archives and improving archiving accuracy. Introduced a debug build option that allows exclusion of the compiler, supporting more reproducible and targeted troubleshooting. Updated bare-metal runtime documentation to clarify pthread dependencies, providing guidance for both single-threaded usage and custom pthread surface integration. Leveraged C++, CMake, and Python to deliver these changes, focusing on build system correctness, developer guidance, and maintainability within continuous integration and deployment workflows.