During December 2024, Davide Massaro focused on improving the reliability of parallel data restoration for the mg5amcnlo/mg5amcnlo repository, addressing a critical compatibility issue on macOS systems. He implemented a shell scripting solution that replaced the unavailable nproc command with sysctl for accurate CPU core detection on macOS, and enhanced the robustness of the restoration process by invoking xargs with the -S1024 flag to prevent command length overflows. Leveraging his skills in shell scripting and system administration, Davide’s targeted bug fix reduced failure rates in CI and developer environments, contributing to smoother, more reproducible builds for macOS users.