During May 2025, this developer enhanced onboarding workflows and documentation accuracy for the se-sac/sesac-01 repository. They created and initialized new homework directories for student ChoiHyeonWon, establishing empty README.md files to streamline assignment setup for class01 and class02. Their work focused on improving documentation hygiene by correcting student naming inconsistencies and refining whitespace formatting, which reduced future maintenance overhead. Using Markdown and documentation best practices, they addressed pull request-related updates to ensure that tables and references accurately reflected current student entries. The scope of work was targeted and foundational, supporting consistent onboarding and maintainability for both students and instructors.