Worked on the th-ch/youtube-music repository to deliver a complete Russian localization, translating all 477 interface strings using JSON and Weblate to support internationalization and broaden accessibility for Russian-speaking users. Enhanced the front end by adding a clock to the navigation panel, improving user experience and time awareness within the application. Introduced new options for converting Chinese characters, further supporting multilingual accessibility and usability. Established a maintainable translation workflow through Weblate integration, ensuring future updates can be managed efficiently. The work focused on front end development, i18n, and localization, addressing both immediate user needs and long-term maintainability.