Haopeng Xiang focused on stabilizing build pipelines and improving repository hygiene for the tiiuae/nuttx and apache/nuttx-apps projects. He addressed critical build errors by refining C++ include paths and updating CMake and Makefile configurations, ensuring reliable test framework discovery and reducing build failures. His work included updating .gitignore files to reflect new directory structures, which streamlined version control and minimized future merge conflicts. By leveraging his expertise in C++, CMake, and Git, Haopeng enhanced maintainability and simplified onboarding for collaborators. His targeted bug fixes demonstrated a methodical approach to build system reliability, though his contributions were limited to maintenance tasks.