During June 2025, Dang Hao Phu contributed to the dzokha1010/HTTT2211 repository by implementing a document delivery and asset management system to support curriculum exercises. He developed features for uploading and organizing course exercise documents, focusing on lifecycle management for temporary and auto-generated files to maintain repository cleanliness and artifact integrity. Using Git for version control and leveraging scripting for file operations, he prepared the repository for scalable curricular updates and smoother collaboration. While the work addressed a single feature without bug fixes, it demonstrated a methodical approach to repository hygiene and future-proofing for ongoing educational content management.