Over a two-month period, contributed cross-platform packaging enhancements to both the mongodb/mongo-python-driver and astropy/astropy repositories. Focused on expanding Windows ARM64 support, implemented Python wheel packaging and updated CI/CD workflows using GitHub Actions and YAML to automate ARM64 builds and releases. For the MongoDB Python driver, delivered distributable Windows ARM64 wheels and established a foundation for packaging parity across platforms. In astropy, integrated ARM64 wheel support into the release process, ensuring correct release hashes and documenting changes in the changelog. The work improved installation experiences and broadened platform compatibility, emphasizing automation, release management, and Python packaging best practices.