During February 2025, this developer delivered a feature for the Wunderbyte-GmbH/moodle-mod_booking repository that enabled sending ICS attachments in booking rule emails. Working primarily with PHP and focusing on backend and Moodle plugin development, they implemented configurable options allowing per-rule control over whether ICS files are sent and whether an event is marked as a creation or cancellation. The technical approach included enhancing ICS rendering to ensure compatibility with Google Calendar and other email clients, improving the reliability of calendar-based communications. Their work provided clear traceability from design through to commit, aligning with roadmap goals for better calendar integration.