During April 2025, Dim worked on modularizing the build system for the CTSRD-CHERI/cheribsd repository. He refactored the Makefile-based build configuration by relocating extra suffix-transformation rules into a dedicated bsd.suffixes-extra.mk file, thereby improving the modularity and maintainability of the build process. This approach preserved the existing build output and ensured no functional changes, while establishing a clearer separation of transformation logic for future enhancements. Dim’s work focused on build system configuration and Makefile expertise, laying a foundation for easier maintenance and extensibility. The depth of the change was structural, targeting long-term clarity rather than immediate feature expansion.