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Management graphical interface, real-time compliance and ease of use are some of Rudder core principles. When Rudder was created in 2010, hundreds of servers were considered a large installation, and the constraints and limits to manage systems were totally different than nowadays, as IT speaks in terms of thousands of nodes. I’ll present how we scaled Rudder from hundreds to 10k nodes, on each different aspect of the product: changing the way nodes talk with the Rudder server, rewriting the data model, evolving the UI, how we detected new limits - further away - and how we removed them; and made sure these limits don’t come back through tooling and testing. Finally, I’ll present the planned evolutions in upcoming releases to reach 50k managed nodes.