JeongEon8 focused on repository structure and maintainability for the JeongEon8/AlgorithmStudyinGumi project over a two-month period. They delivered two non-functional features centered on code organization and file management, using C++, Java, and Python. Their work involved refactoring the repository to align with updated naming conventions and reorganizing study files by month and year, which improved onboarding and future sprint planning without altering existing functionality. These changes enhanced project hygiene, clarified module boundaries, and established a consistent structure for future development. While no bugs were fixed, the work laid a solid foundation for maintainable and scalable code contributions.