Doug Moore contributed to the CTSRD-CHERI/cheribsd repository by enhancing the robustness of the swap pager’s seek_data path within the kernel memory management subsystem. He addressed a bug where the function failed if the first page was invalid, implementing logic in C to continue searching for valid pages or swap data, thereby reducing swap operation failures. This work improved the stability and data integrity of the operating system under memory pressure, resulting in more predictable performance. Doug demonstrated expertise in kernel development, memory management, and debugging, with clear commit messaging and traceability that supported maintainability and reliability of the memory subsystem.