In June 2025, Xavier B. developed federated group sharing capabilities for the nextcloud/android and nextcloud/android-library repositories, enabling users to share files and resources with federated groups across organizational boundaries. He designed and integrated new data models and UI components to support this share type, ensuring seamless collaboration workflows. The implementation involved backend enhancements for remote group data handling and API integration, using Java and Kotlin to establish end-to-end support for federated group shares. While the work focused on feature delivery rather than bug fixes, it laid a robust foundation for federation-oriented governance and cross-repository collaboration within the Nextcloud ecosystem.