Our research focuses on the dynamics of socio-sustainable transitions. Within the framework of the Proof of Transition Concepts (proTract) research program, we investigate real world, often unexpected, examples of successful sustainability transitions. These cases highlight how diverse actors – public, private, and civil society – come together to forge cooperative solutions that yield socially and ecologically positive outcomes. Our aim is not only to understand how transitions happen but also to offer actionable and replicatable insights for fostering them across different contexts.