ParkChanYoung developed foundational documentation infrastructure for the se-sac/sesac-01 repository, focusing on scalable and maintainable class materials. By creating structured homework directories and initializing them with Markdown README files, ParkChanYoung established a clear template for future assignments, streamlining onboarding for new contributors. The work included updating metadata to ensure accurate author attribution, correcting previous inconsistencies in class README files. This approach emphasized documentation updates and metadata management, leveraging Markdown to improve clarity and consistency across the project. The changes addressed both immediate organizational needs and long-term maintainability, reflecting a thoughtful approach to documentation structure and collaborative workflow within the repository.