Worked on the Metrolist repository to deliver complete Japanese localization for both the user interface and audio features, achieving full coverage of 812 strings. Leveraged XML and Weblate to manage and translate all UI prompts and audio equalization instructions, ensuring immediate accessibility for Japanese users. Integrated the localization directly into the main codebase, enabling seamless adoption and supporting future updates. Established a streamlined, Weblate-based workflow to facilitate ongoing translation efforts and minimize manual intervention. Focused on Android development, localization, and translation, this work laid the foundation for broader multilingual support and improved accessibility within the Metrolist application moving forward.