Introducing the Interfacer Platform

While the global movement around fab cities, fab labs and the maker scene is growing, there is a digital infrastructure missing enabling a data-based circular economy on both the global and local sphere.

Fab city is an innovative urban model that re-localises production to the city and its bioregional context, by empowering communities with the technology to build their own sustainable, innovative and regenerative urban futures.

The project aims to help fab cities to produce everything they consume on the basis of collaboratively developed and globally shared data as commons on the web. It promotes a green, resilient, and digitally-based mode of production and consumption that enables the greatest possible sovereignty, empowerment and participation of citizens all over the world.

Within the Interfacer Project, focused on the core component of this technology stack, the Interfacer Platform (aka Fab City OS Core), an innovative federated solution, tackling the challenges facing open-source hardware projects by mapping out the entire product lifecycle.

A digital and federated infrastructure upon which an economy of fab cities and regions will unfold covering the value chain from design over production to sales. Hosted by local fab city administrations, designs from the global commons may enter the local sphere where they can be converted into physical artefacts by fab labs and SMEs for users and customers of the products.


Interfacer is a software stack aiming to offer modular and highly customizable components, that each fab city, fab lab and like-minded organizations, can and adopt, activate and configure based on their own needs. The challenges we are tackling involve different aspects, like:

  • accelerating the growth of the network by facilitating the onboarding process
  • reducing the needed technical knowledge
  • ensuring compatibility, coherence and scalability by promoting the same data exchange standards, protocols, principles and frameworks
  • offering community support and further development along the way.


Digital Product Passport is a structured product related information, including data on sustainability to facilitate circular value retention and extraction activities such as reuse, remanufacturing and repairing.Β 
Stored into a distributed ledger, it will guarantee reliable and authentic information, helping to reduce production costs and bureaucracy.

DPP will also record design’s flows and development data to promote global collaboration, providing stronger motivations and opportunities to new contributors.

The DPP will add valuable data for recycling, disassembly and repair to improve sustainability and green practices.


The W3C DID standard defines a way to create and manage decentralised identifiers (DIDs) for entities such as people, organisations, devices, etc. on a blockchain or other decentralised systems.It empowers digital sovereignty and federated cooperation.


Fab City OS core presents a revolutionary economic model, called Creative Flows, supporting the sharing, tracking, and tracing of open hardware in a standardised form.Β 

This enhances collaboration and promotes fair agreements directly between users in a secure network. Globally connected productive communities are empowered to discover, remix, and improve designs and technologies like never before.

Creative Flows, utilising blockchain technology, facilitates fair revenue distribution based on contributions and agreements. Fab City OS will transform the traditional economic model, offering a decentralised and equitable solution.

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Check out the technical deliverables:
  • D3.2b Technology Report πŸ‘‰ Open PDF
  • D2.3c Standards for interoperability and appropriate end-to-end federation πŸ‘‰ Open PDF
  • 2.4c Publication Open Educational Resources on digital sovereignty πŸ‘‰ Open PDF



Project funded by the European Regional Development Fund (ERDF) in the context of the INTERFACER Project

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