During March 2025, Nam Murphy enhanced dependency compatibility testing and packaging hygiene for the pytest-dev/pytest repository. Focusing on Python and leveraging skills in dependency management and Python packaging, Nam introduced explicit minimum version constraints for key dependencies such as colorama, iniconfig, and packaging within pyproject.toml. This approach broadened the compatibility testing matrix, enabling validation of pytest behavior with older dependency versions and various resolution strategies. Additionally, Nam updated exceptiongroup to a stable release, further supporting robust compatibility testing. The work demonstrated a methodical approach to improving CI feedback and ensuring reliable dependency resolution across diverse Python environments.