With a special interest in privacy respecting distributed and federated networks, Björn has been developing federated technology for Nextcloud since 2012. He is a graduated computer scientist and conducted research in the area of cloud robotics before he joined ownCloud and later on Nextcloud. He is active in the Free Software community for more than 20 years. As FSFE's Deputy Coordinator Germany and long-time Free Software and Open Standard activist he has a deep understanding about the political, legal and social aspects of software freedom. Over the years he worked in many areas of Nextcloud, including versioning, deleted files, sharing, encryption and many more.