Developed and delivered Haitian Creole localization for the jellyfin/jellyfin repository, enabling the application’s user interface to support Haitian Creole speakers and improving accessibility. The work focused on integrating translation support using Weblate, with all localized UI strings managed through a Git-based workflow and JSON language files. This contribution established a reusable localization pipeline, documented translation processes, and collaborated with other localization contributors to ensure accuracy and maintainability. By implementing this feature, the developer expanded the platform’s inclusivity and laid the groundwork for future language support, directly addressing the needs of a broader user base without introducing new bug fixes.