Worked on the pygame-community/pygame-ce repository to enhance the command line build and testing workflows using Python. Developed a feature that introduced an alias from the 'build' command to 'install', streamlining the build process for contributors. Expanded the 'all' command to support targeted module testing, allowing developers to run tests on specific components rather than the entire suite. Focused on improving developer productivity by enabling faster local builds and more granular testing control. Demonstrated skills in build system design, command line interface tooling, and modular testing strategies, laying groundwork for more efficient onboarding and iterative development within the project.