Worked on the jellyfin/jellyfin-web repository to deliver Serbian language localization for the web client, enhancing accessibility for Serbian-speaking users. Utilized frontend development skills and internationalization best practices to integrate new UI translations, leveraging the Weblate translation workflow for efficient string management. The contribution involved working with JSON to ensure accurate and consistent language support throughout the interface. By collaborating with localization teams and managing git commits, the developer broadened the application's user base and improved inclusivity. This work laid the foundation for future locale additions, demonstrating a methodical approach to expanding multilingual support without introducing new bugs.