Nick Smith developed targeted enhancements for two open-source projects, focusing on robust package management and data structure integration. For conda-forge-pinning-feedstock, he improved macOS arm64 packaging by integrating cms-combine into the osx_arm64 package list, carefully adjusting dependency ordering to ensure correct platform recognition and reliable CI packaging. In the scikit-hep/vector repository, Nick implemented PyTree support for vector objects using Python and the optree library, enabling flattening and reconstruction of vectors for downstream algorithms. He expanded test coverage and updated documentation, demonstrating depth in API design, data structures, and testing, while maintaining project stability and supporting new data-processing workflows.