GÉANT has recently joined ONOS core members and other affiliated organizations in a working group called “deployments brigadeâ€. The goal of the brigade is to create an SDN open-source software stack based on ONOS that can be deployed by Research Education Networks (RENs) and Operators. The document explains a) the GÉANT requirements and the motivations to join the project; b) introduces the concept of ONOS brigades and defines the goals of the deployment working group; c) gives an overview of the software stack developed, and how GÉANT and its associates intend to test it and deploy it; d) describes the goals achieved and the tasks still in progress.