Worked on the kholia/zephyr repository to streamline the build system by refining CMake configuration. Focused on removing a redundant -fuse-ld=lld linker flag from linker_flags.cmake, consolidating flag management under TOOLCHAIN_LD_FLAGS to improve maintainability and reduce the risk of misconfiguration. This change did not alter user-facing functionality but simplified future updates related to the LLD linker. Utilized skills in build system configuration and linker optimization, working primarily with CMake. The work emphasized clean engineering practices by reducing duplication and clarifying build logic, resulting in a more robust and maintainable build process for ongoing development needs.