Joey focused on repository hygiene and documentation scaffolding for the HWTeng-Teaching/202502-Statistics-II project, establishing a clean foundation for future development. He consolidated maintenance tasks by removing legacy artifacts and placeholder directories, then created a comprehensive README.md to outline project goals and contribution guidelines. Using Git for version control and Markdown for documentation, Joey sequenced commits to ensure traceability and maintainability. His work reduced technical debt and clarified the repository structure, making onboarding and future documentation expansion more efficient. While the scope was limited to foundational setup, the approach demonstrated attention to maintainable workflows and clear knowledge transfer within the codebase.