OpenCloud was represented in the programme several times: with technical contributions from our team and with experience reports from the community. The recordings of the English presentations are now available and provide insights into current developments.

Recordings of the presentations

Klaas Freitag: "Desktop Client Innovations"

Klaas Freitag, CTO at OpenCloud, presented new aspects of the OpenCloud and desktop client architecture. The focus was on central client/server APIs, architectural decisions for reliable synchronisation in large environments and current developments relating to the Virtual File System, which improves the user experience in the interaction between local file storage and cloud storage.

→ Recording available
→ Presentation available

Tobias Baader and Klaas Freitag: "OpenCloud Rising: Wins and Fails of the last 12 Month"

Product Manager Tobias Baader and our CTO Klaas Freitag looked back on the last twelve months of OpenCloud development. The presentation shows the progress that has been made in areas such as multi-tenancy, Kubernetes deployment and OpenSearch integration. At the same time, it looks at the challenges, learnings and technical decisions that have shaped the further development of OpenCloud in the areas of performance, reliability and data sovereignty.

→ Recording available
→ Präsentation verfügbar 

Dr. Jörn Dreyer: "Storage aspects consumed by OpenCloud"

Dr. Jörn Dreyer gave a technical insight into the storage aspects of OpenCloud. OpenCloud aims to get by without a relational database. This shifts central functions more towards storage integration, including the intensive use of Extended File Attributes. The presentation shows which storage functions OpenCloud uses, which integrations are supported and which topics are currently being researched further.

→ Recording available
→ Presentation available

OpenCloud from the community's perspective

Jan Bróździak: "First experience with OpenCloud in PSNC"

Jan Bróździak from the Poznan Supercomputing and Networking Centre reported on initial experiences with OpenCloud at PSNC. The presentation provides insights into evaluation, operation and storage integration and shows how OpenCloud is tested with a view to large data volumes and high I/O load.

→ Recording available 
→ Presentation available

Vasily Bunakov: "OpenCloud instance for PSDI"

PSDI, the Physical Sciences Data Infrastructure, also presented experiences with OpenCloud. The contribution shows how OpenCloud is being tested in an OpenStack environment and which use cases are to be further developed by partners.

→ Presentation available

All other contributions and materials can be found in the → official programme of the CS3 Conference 2026.