Restack Open Call (2026-11R) - Delivering a strong, reproducible next generation Open Internet Stack through strategic digital commons

Open Internet Stack is an initiative by the European Commission to work towards an resilient operational stack of strategic technology commons worthy of trust — a stable and defendable foundation to foster healthy and strong democracies and economies, delivering the European vision of next generation digital infrastructures and connected collaborative computing networks. It aims to deliver an ecosystem of deployable, scalable, and secure technologies that allow for permissionless innovation, contribute to quality of life and deliver strategic autonomy.

The goal of Restack is to help deliver, mature and scale new internet commons across the technology stack: from libre chips to middleware without a vendor lock-in, from productivity tools to 'local-first' infrastructure — and of course the end user applications needed to consume those networked services. We restack because there is no other viable way. If we want to reclaim digital self-sustainability and yield the full benefits from technology as a society, we need to have an entire stack that is open from the ground up — period.

Only though enough critical mass of shared building blocks and collective pooling of resources and…