During May 2026, contributed to the OneKeyHQ/app-monorepo by enhancing localization features focused on German language support. Leveraging TypeScript and JSON, implemented improved formatting for referral promo titles in German, introducing line-break rendering with react-intl to enhance readability. Conducted a comprehensive review and refinement of German translations across multiple components, updating terminology for global phrases based on feedback from Lokalise. Synchronized translation updates across locales using i18n workflows to maintain consistency and reduce drift. The work emphasized front end development and localization quality, aiming to deliver a more consistent and user-friendly experience for German-speaking users without addressing critical bugs.