Phil improved cross-platform packaging portability for the Lmod package in the spack/spack-packages repository by refining dependency management. He implemented a Linux-only restriction for the procps dependency, addressing build and installation issues that previously affected non-Linux systems such as macOS. Using Python and leveraging skills in package and dependency management, Phil’s change reduced platform-specific build failures and improved installation reliability in diverse environments, including minimal containers. The update led to more consistent behavior across Linux and macOS, enhancing the overall robustness of the packaging process. His work contributed to smoother user experiences and more predictable continuous integration outcomes.