Lexuan established the foundational scaffolding for the HWTeng-Teaching/202502-Statistics-II repository, focusing on repository hygiene and future maintainability. Their work involved creating a placeholder README.md to support documentation-led development and removing an obsolete directory to streamline the project structure. Using Git for version control and Markdown for documentation, Lexuan ensured that all changes were well-documented and traceable, supporting future onboarding and collaboration. While no bugs were addressed during this period, the technical depth lay in setting up a clean, organized codebase that enables efficient feature development and documentation practices, laying the groundwork for a sustainable and collaborative project environment.