During May 2025, Xiaoguang worked on the wxiaoguang/gitea repository, focusing on backend development and Git LFS handling using Go. He addressed a critical issue by implementing a safeguard in the web UI to prevent editing of Large File Storage (LFS) files, thereby protecting binary assets from accidental modification. The solution involved introducing a file type check that allows only editable text files to be modified through the interface, aligning with repository safety policies and maintaining data integrity. Xiaoguang’s contribution was targeted and technically sound, demonstrating depth in understanding both backend workflows and the nuances of LFS file management.