Worked on the CTSRD-CHERI/cheribsd repository to address a critical build issue affecting macOS static builds. Focused on the build system, the developer removed the libcrypt dependency from the compile_et bootstrap process, opting for an older linking mechanism to ensure compatibility with macOS environments. This change streamlined the bootstrap dependency chain, improving reliability for cross-platform development and continuous integration workflows. Utilizing Makefile and expertise in build systems, the work enabled successful static compilation on macOS, directly supporting CheriBSD’s portability goals. The contribution centered on bug resolution rather than feature development, demonstrating depth in cross-platform build engineering and system maintenance.