Maarten Arnst worked on standardizing environment variable naming for Kokkos profiling libraries across the ROCm/rocprofiler-systems and ROCm/rocm-systems repositories. He refactored build system configurations and CMake scripts to rename KOKKOS_PROFILE_LIBRARY to KOKKOS_TOOLS_LIBS, aligning the specification and loading of profiling libraries. This change reduced configuration errors and improved consistency for profiling workflows, particularly benefiting onboarding and cross-repository maintenance. Maarten applied his expertise in C++, build systems, and environment variable management to ensure robust integration. The work demonstrated careful attention to code hygiene and addressed both feature development and bug resolution within a focused, high-impact engineering scope.