Developed a modern packaging foundation for the unslothai/gpt-oss repository by implementing a PEP 517 compliant build backend using Python. Focused on build system configuration, the work included updating the MANIFEST.in to ensure all necessary files were included for proper source distributions. This approach stabilized the build process, enabling reproducible and clean distributions while reducing onboarding friction for new contributors. The targeted changes addressed existing build issues and laid the groundwork for future PyPI packaging and CI/CD integration. The effort demonstrated a strong understanding of Python packaging standards and build automation, resulting in a more maintainable and distributable project.