Over a two-month period, this developer delivered Belarusian language support across the jellyfin/jellyfin and jellyfin/jellyfin-androidtv repositories, focusing on internationalization and localization. They integrated Weblate-driven translations using JSON, JavaScript, and XML, establishing an end-to-end localization workflow that improved accessibility for Belarusian-speaking users. Their work included expanding translation coverage to 100% for Jellyfin Android TV and maintaining translation traceability for future updates. By collaborating across multiple repositories and leveraging open source contribution practices, they enhanced the localization readiness of Jellyfin, enabling scalable translation updates and preparing the platform for broader international deployment without introducing any new bugs.