Restack Open Call (2027-01R)
Restack Open Call (2027-01R) supports individuals, organisations and collaborations developing open-source technology to strengthen internet commons, digital autonomy and permission-free innovation.
Funder: European Commission
Due Dates: November 3, 2026 (Opening) | January 3, 2027, 12:00 CET (Application deadline)
Funding Amounts: €5,000–€50,000 for 1–12 months (flexible); €7 million programme budget
Summary: Restack supports research and development of open-source building blocks across the technology stack to strengthen operational internet commons.
Key Information: Proposals must have a clear European dimension, and funded outcomes must be freely and openly licensed.
Description
Restack supports work to deliver, mature and scale operational internet commons into Connected Collaborative Computing networks (3C). Its scope spans libre chips, middleware without vendor lock-in, productivity tools, local-first infrastructure and end-user applications. It welcomes both new technologies and improvements to existing, future-proof technologies with practical, real-world impact.
Supported by the European Commission through Horizon Europe, Restack operates as a cascade funding programme, with NLnet Foundation handling grants. Its priorities include secure and privacy-friendly infrastructure, software supply chains, reproducibility, interoperability, standards, service deployment and trust-enhancing technologies. The goal is a robust, reproducible Open Internet Stack that strengthens digital autonomy and enables permission-free innovation.
