Build better, design smarter and code responsibly.

A 3-month global challenge to help tech teams rethink and reduce the environmental impact of digital products—through real-world learning, expert mentoring, and actionable eco-design practices.

Join the 2025 challenge

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Take part

This challenge is built for cross-functional teams—designers, developers, architects, and product managers,
ready to rethink how they build digital products.

When?

September – November 2025

Premium audience

Any digital product or system (cloud-based or not) you can apply eco-design to

Why?

To learn new methods, apply real change, and grow with a like-minded community

What you’ll get:

A dedicated mentor for hands-on support

Access to 3 expert-led workshops

Visibility for your project, plus access to community tools

A chance to present your work and contribute to the wider conversation on sustainable digital

Join the 2025 challenge

What is the challenge about?

Go beyond the basics—dig into API design, security, management, and real implementation challenges.

Match eco-design best practices to real-world organizational needs

Identify new methods to help grow a sustainable digital ecosystem

Engage the wider tech community in building responsible digital systems

Past participants

View the agenda

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Opening webinar session

September 25, 2025 (Online)

Workshop #1: Product design

Thursday, October 2, 2025

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Workshop #2: Dev languages

Thursday, November 6, 2025

Workshop #3: Infra & Architecture

Thursday, November 20, 2025

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Grand finale @ apidays Paris 2025

December 5, 2025

Meet the mentors

Real experts guiding your team every step of the way.

Aurélien Binder-Meunier

Fractional CTO & Sustainable AI Expert

Bérangère Leyritz

UX Content Designer | UX Writer | Formatrice

Bertrand Denoncin

Full Stack Software Engineerat Fairness

Christophe Amelot

Co-Founder & UX Designer of Aristys & Green IT Certified

Christophe Clouzeau

Expert UX, Écoconception et Numérique Responsable at Temesis

Grégory Cauchie

President & Founderof KOEVOO

Jean-Anaël Gobbe

Co-Founder of Aristys &Green IT Certified

Sébastien Rufer

Web Eco-Design Specialistat Angle Web

Romuald Priol

IT Developer at Peaks

Jérôme Moly

Independent GreenIT and Responsible Digital Expert

The jury

Your work will be reviewed by leading sustainability thinkers from across tech, government, and digital design.

Shau Law

Data Custodian IT Officer at BNP Paribas Cardif

Louise Vialard

Director of the Alt Impact Program at ADEME

Vincent Poncet

Cloud Sustainability Specialist at Google

Guillaume Grillat

Tech Community Advocate at Adevinta

Tristan Vuillier

Shift Project Contributor | Director, Sustainability Practice France at Devoteam

Alizée Colin

Founder & Editor at Le Bon Digital & Head of Education and General Public at Fresque du Numérique

Gaëlle Mangeon

Founder of Think Digital Different

Anne Faubry

UX/UI Designer / Eco-design Co-Lead at Designers Ethiques

Founding partner

Premium partners

Supporting partners