Nils Albartus enhanced the build system for the emsec/hal repository by improving OpenMP detection on macOS, specifically targeting developers using Homebrew. He focused on refining the CMake configuration, adding logic to check default Homebrew locations and improving the detection of libomp and include paths. This work addressed a common pain point in cross-platform dependency management, ensuring that OpenMP is reliably identified and integrated during the build process on Apple systems. By concentrating on build system robustness and CMake scripting, Nils delivered a targeted feature that streamlines the developer experience and increases reliability for macOS builds without introducing new bugs.