Worked on expanding localization support for the Jellyfin Web App by implementing Vietnamese language translations, focusing on improving accessibility for Vietnamese-speaking users. Leveraged JSON to translate and validate UI strings, ensuring comprehensive coverage across core interface components. Utilized Weblate as the translation platform to streamline the internationalization workflow and maintain consistency throughout the project. The work addressed onboarding and retention challenges by making the application more approachable to a broader audience. All changes were contributed directly to the jellyfin/jellyfin-web repository, demonstrating skills in localization, translation, and web development while enhancing the user experience for a new language community.