During their two-month contribution, Jan Duehring enhanced the opencast-admin-interface by implementing UTC-based recurring event scheduling, addressing cross-time-zone inconsistencies and improving data integrity for multi-region deployments. Jan refactored RRULE generation to use UTC methods in TypeScript, ensuring consistent event storage and interpretation. In the opencast/opencast repository, Jan delivered LTI tool features enabling sorting of search results by Dublin Core metadata fields and created date, with API enhancements and updated documentation for developers and integrators. Their work demonstrated strong backend development and API integration skills in Java and TypeScript, resulting in more reliable scheduling and flexible content discovery across platforms.