Worked on enhancing Ukrainian localization for the th-ch/youtube-music repository, focusing on expanding translation coverage to 96 percent and improving the user interface for Ukrainian-speaking users. Leveraged YAML for managing translation strings and integrated Weblate to streamline the internationalization workflow, enabling more efficient collaboration among contributors. The approach emphasized clear commit messaging and readiness for localization quality assurance, which helps reduce translation backlog for future releases. By establishing a repeatable process for internationalization, the work supported faster adaptation to new markets and improved the overall translation pipeline, demonstrating depth in both technical execution and workflow optimization within the localization domain.