During November 2025, Ziyang Shen contributed to the koreader/koreaderhub.io.git repository by localizing the KOReader User Guide into Traditional Chinese. Using PO files and the Weblate platform, Ziyang translated 78 out of 1,947 strings, achieving 4.0% coverage and establishing a scalable workflow for ongoing localization. The work focused on documentation, localization, and translation, with clear, traceable commits that included translation notes and references to the Weblate interface. This effort improved accessibility for Traditional Chinese users and laid the foundation for future translation work, demonstrating a methodical approach to internationalization within the KOReader documentation ecosystem.