Worked on stabilizing libunwind integration within the fbthrift and CacheLib repositories, focusing on resolving build-time regressions and improving cross-platform reliability. Addressed aarch64 compilation failures by updating the libunwind version and corrected manifest path typos to ensure accurate build referencing. Leveraged C/C++ development skills alongside build system and dependency management expertise to enhance CI stability and streamline downstream integrations. The work emphasized precise library and manifest configuration, resulting in smoother build processes and faster iteration cycles. No new features were added during this period, but targeted bug fixes contributed to more robust and portable build environments across both projects.