Worked on the linagora/tmail-flutter repository to expand internationalization support by delivering German UI localization. Focused on translating key interface elements such as welcome messages, account creation failures, language selection, server usage, display names, and sign-in errors to enhance usability for German-speaking users. Utilized the arb language format and integrated Weblate to streamline the translation workflow, ensuring future updates can be managed efficiently. The work centered on improving accessibility and user experience for a broader audience, with a technical emphasis on internationalization practices and translation management. No major bug fixes were documented during this period, reflecting a targeted feature delivery.