In 2020, the DSI of the Departmental Fire and Rescue Service (SDIS) 57 decided to equip the Moselle firefighters with a new collaborative service, replacing its file server which was both aging and complex to administer. Here is how, accompanied by Arawa, the Service moved to Nextcloud, Collabora Online, Arawa Workspace and Monitor tools to gain functional efficiency and ease of administration while ensuring the sovereignty of its data.