The article analyses local contestation of data centres in the Dutch province of North Holland. I explore why and how local councillors and citizen groups mobilized against data centres and demanded democratization of decision-making processes about digital infrastructure. This analysis is used as a vantage point to problematize existing policy and academic narratives on digital sovereignty in Europe. I show, first, that most debates on digital sovereignty so far have overlooked the sub-national level, which is especially relevant for decision making on digital infrastructure. Second, I insist that what matters is not only where digital sovereignty lies, that is, who has the power to decide over digital infrastructural projects: for example, corporations, states, regions, or municipalities. What matters is also how power is exercised. Emphasizing the popular democratic dimension of sovereignty, I argue for a comprehensive democratization of digital sovereignty policies. Democratization in this context is conceived as a multimodal multi-level process, including parliaments, civil society and citizens at the national, regional and local levels alike. The shape of the cloud should be citizens’ to decide.