The Sovereign Stack

The Problem

Digital fragmentation costs Europe €400 billion annually. 40% of IT budgets are consumed by integration overhead. Citizens juggle an average of 100 passwords across incompatible systems that refuse to talk to each other.

The EU Digital Identity Wallet arrives in December 2026, but without addressing the underlying fragmentation of our digital infrastructure, we will simply add another layer to an already fractured ecosystem.

The Solution

The Sovereign Stack proposes a radical simplification: establishing common digital primitives. Standardised, interoperable building blocks for identity, data, APIs, and services that allow Europe to build once and deploy everywhere.

Just as construction relies on standard door widths and brick sizes, digital infrastructure needs common foundations. The Sovereign Stack provides them.

What We Gain

• 1 Eliminate waste and duplication. Interoperable standards replace repeated logins, APIs, and formats
• 2 Raise quality and resilience. Simplified stacks and common skills reduce bugs and downtime
• 3 Ready for AI. A stack designed for AI consumption: machine-readable specs, standardised patterns, and comprehensive test coverage let AI build, test, and iterate at pace
• 4 Refocus talent on innovation. Free developers from switching costs and framework churn
• 5 Increase competitiveness. Lower barriers for SMEs while keeping incumbents under healthy pressure
• 6 Streamline government and enterprise services. Interoperability from day one cuts costs and speeds delivery

Five Guiding Principles

1. 1

   Citizen Sovereignty

   Users own their identity and data. No lock-in, no surveillance, no selling attention.

2. 2

   Interoperability by Default

   Services, data, and identity work across providers, sectors, and borders. No custom integration required.

3. 3

   AI-Ready Architecture

   Machine-readable specifications, standardised patterns, and comprehensive test coverage enable AI-assisted development at pace.

4. 4

   Open Standards, Open Competition

   Transparent technology on a level playing field, lowering barriers for SMEs while keeping incumbents under healthy pressure.

5. 5

   Build Once, Deploy Everywhere

   Common digital primitives for identity, data, APIs, and services. Every project starts from a working foundation, not from scratch.

The Pilot

We're proving the concept by building the stack and using it to enhance a real local service, chosen with our partners, for citizens who need it now.

• Proven stack. Reusable digital primitives for identity, data, and APIs, validated through a real deployment
• Measurable impact. 1,000+ pilot users, with clear metrics on service improvement and citizen satisfaction
• Foundation for scale. Once proven, the stack underpins further services, starting with FrankMail

Learn about the pilot

Get Involved

The Sovereign Stack is a public-private partnership initiative. We're seeking:

Register your interest

We'll respond within five working days to discuss how your organisation could be involved.

Resources

White Paper (Draft)

Full technical and policy detail

The Sovereign Stack is a public-private partnership initiative involving SMEs, universities, and industry alliances.

Licensing: White paper and non-code content under CC BY 4.0. Code samples under MIT/Apache-2.0.