Session d’ouverture
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Cédric Giorgi Head of Content 
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Mehdi Medjaoui Founder and Chairman 
Images : FOST Paris 2025
Agenda
Rassembler, construire, ouvrir
Le Builders Village est ouvert les trois jours. La conférence se tient sur deux : le 2 décembre s'ouvre sur scène, puis des talks toute la journée. Le 3 décembre met en œuvre.
Préliminaire, susceptible de changer
Le programme
Mardi 1er décembre
Builders Village ouvert08:30 - 17:30Baobab
SoiréeFounders & leaders gatheringHuis clos
Mercredi 2 décembre
Builders Village ouvert08:30 - 17:30Baobab
08:45 - 09:15Breakfast
Dragonnier 3Niveau D
- Session d’ouverture Cédric GiorgiHead of ContentBuild It Summit Mehdi MedjaouiFounder and Chairmanapidays
- Construire un stack européen : déplacer la montagne Cristina CaffarraCo-founder and ChairEuroStack Initiative Foundation
- Déplacer la demande, intégrer l’offre Cristina CaffarraCo-founder and ChairEuroStack Initiative Foundation Aymeril HoangEuroCommons, Caisse des DépôtsEuroCommons
Yann LechelleEntrepreneur and co-founderProbabl 
et 4 autres : Fabrizio Del Maffeo, David Djaïz, Sam Baker, Claudia Alsdorf
Acacia 1/2Niveau A
11:00 - 11:20Break
Dragonnier 3Niveau D
- Keynote Scaleway, titre à annoncer Damien LucasCEOScaleway
- Keynote Numeum, titre à annoncer Mehdi HouasPresidentNumeum
- Les DSI en première ligne de la souveraineté numérique Nouamane CherkaouiDeputy Managing Director, TransformationBPCE SI
Matthieu GrymonprezGroup CIO and CDOADEO 
Guillaume YvonBoard memberCRiP 
Acacia 1/2Niveau A
12:50 - 14:00Lunch
Dragonnier 3Niveau D
Acacia 1/2Niveau A
- Votre entreprise n’a pas besoin d’un énième outil d’IA. Elle a besoin d’un système d’exploitation Lena ShakurovaFounder and CEOParsLabs
- Boucler la boucle : construire une mémoire partagée pour l’IA de votre organisation Shaharia AzamSenior EngineerTrade Republic
- Quand les non-développeurs construisent : comment Alan y arrive Alexandre GerlicVP of EngineeringAlan
- Session SuperHuman, titre à annoncer Elise ReichardtSuperhuman ExpertSuperhuman
- Au-delà du vibe coding : comment les non-développeurs construisent des applications métier qui durent Adrien MaretFounder and CTOMaleus
- Inférence locale, construction locale Barbara DelacroixCEO and Co-founderDevana
Dattier 1Niveau D
16:00 - 16:30Break
Dragonnier 3Niveau D
Acacia 1/2Niveau A
Dattier 1Niveau D
After workBuiiiild after work
Jeudi 3 décembre
Builders Village ouvert08:30 - 17:00Baobab
08:45 - 09:15Breakfast
Dragonnier 3Niveau D
- De la loi au code : des flux de build agentiques pour les équipes non techniques Thomas VillarenSenior Staff Software EngineerPayFit
- De l’application à la plateforme : quand les clients construisent avec leurs outils Sophie CornayBusiness Unit Manager, Qonto AIQonto
Arnaud SerfatyHead of Fund ControllingEverstone REM 
- Session Softr, titre à annoncer Mariam HakobyanCo-Founder and CEOSoftr
- De l’atelier au tableau de bord : comment une chaîne de boulangeries construit ses propres logiciels avec l’IA Jean-François BandetCEOBO&MIE
10:40 - 11:00Break
Dragonnier 3Niveau D
- 5 démos d’IA complètement déjantées, et comment je les ai construites Max GfellerTechnical evangelistLovable
- TBD panel delos x twin Hugo MercierFounder and CEOTwin
Thibaut de la Grand’riveFounder and CEODelos 
- Session Compose, titre à annoncer Frode EttesvollCEOCompose
- Ce qui a cassé quand j’ai quitté la plateforme de vibe coding Kim RowdenFounderLaunchDocs
13:00 - 14:00Lunch
Dragonnier 3Niveau D
- AI agents within enterprise with H (title TBD) Caroline CharraHead of ProductH Company
- Session Airmakers, titre à annoncer Noam SayFounderairmakers
- Dans les coulisses d’un stack d’automatisation de podcast, et comment l’industrialiser Bruno SoulezPodcast hostIf This Then Dev
- Session WorksPlatform, titre à annoncer Mohammed M'HAMDICEOWorks Platform
15:30 - 15:55Break
Construire un stack européen : déplacer la montagne
The EuroStack mission, why demand is the key, and the questions a board, a CIO or a CTO must answer to shift purchases to European vendors.
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Cristina Caffarra Co-founder and Chair
Déplacer la demande, intégrer l’offre
- Cristina Caffarra Co-founder and Chair
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Aymeril Hoang EuroCommons, Caisse des Dépôts -
Yann Lechelle Entrepreneur and co-founder -
Fabrizio Del Maffeo CEO 
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David Djaïz CEO 
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Sam Baker Partner 
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Claudia Alsdorf Head of Business Development 
Du no-code au code IA : la nouvelle ère du build
An open, audience-driven conversation about the future of no-code in the age of AI. We’d like to connect the no-code ecosystem with how people are actually building today: what’s changing, what still works, and what teams need.
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Julien Mottet Founder 
Huis clos : sur invitation ou pass éligible
Sur demande : l'hôte confirme chaque place selon le profil et la capacité, plutôt qu'au premier arrivé. Pass concernés: Leadership. Voir les pass et demander une place
Workshop EuroStack : « how to » déplacer la demande : offres groupées, priorités, business case, achats conjoints
Organized around a series of questions “how do we build the bundles demand needs”, “what’s in scope”, “the business case”, “joint procurement”, everyone can participate but we will create smaller panels to discuss each topic.
- Cristina Caffarra Co-founder and Chair
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Quentin Adam CEO 
- Yann Lechelle Entrepreneur and co-founder
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Eric Baissus CEO 
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Vincent Casillas Chief Technology Officer 
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Alessandro Cillario Co-founder and Co-CEO 
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Astor Nummelin Carlberg Open Source Sovereignty and Community Engagement 
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Rik Viergever COO 
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Stéfane Fermigier Founder and CEO 
Keynote Scaleway, titre à annoncer
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Damien Lucas CEO
Keynote Numeum, titre à annoncer
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Mehdi Houas President
Les DSI en première ligne de la souveraineté numérique
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Nouamane Cherkaoui Deputy Managing Director, Transformation -
Matthieu Grymonprez Group CIO and CDO -
Guillaume Yvon Board member
Votre entreprise n’a pas besoin d’un énième outil d’IA. Elle a besoin d’un système d’exploitation
Adding AI to individual tasks does not automatically make a company work better. Without shared context, clear ownership, and connected workflows, teams can end up with more tools and more coordination overhead. An AI operating system is a structured way of running a business where people and AI agents work together across connected processes. In this session, we’ll cover: - The essential layers of an AI operating system: shared context, tools and connectors, safety controls and the AI operating layer. - How people and AI agents work together, with clear ownership, approvals, and escalation paths. - How to start with one useful workflow and expand without unnecessary complexity. Attendees will leave with a blueprint for connecting their scattered AI automations into a coherent operating model.
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Lena Shakurova Founder and CEO
Du cloud européen à une Europe numériquement résiliente
- Quentin Adam CEO
Boucler la boucle : construire une mémoire partagée pour l’IA de votre organisation
How can several AI tools share what they learn? This talk covers a read, act, write-back loop: agents read organisational rules, prompts and lessons before a task and record new lessons after it. Topics: scoping by team and project, ownership, review, stale entries and limits.
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Shaharia Azam Senior Engineer
Quand les non-développeurs construisent : comment Alan y arrive
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Alexandre Gerlic VP of Engineering
Session SuperHuman, titre à annoncer
Most teams already have AI. Yet the work still stalls, because email, spreadsheets, documents and AI assistants don’t share context, and employees end up copy-pasting between them: they become the integration layer. We will share what happens when one suite connects every tool and gives access to all your company knowledge, from calendar and email to documents, financial and CRM tools, through MCP or plugins. Superhuman does this around everyday operational work, reducing manual handoffs and helping teams act without constantly switching apps.
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Elise Reichardt Superhuman Expert
Au-delà du vibe coding : comment les non-développeurs construisent des applications métier qui durent
Giving business teams AI tools is easy. Helping them build applications that can be deployed, used, and maintained is harder. On Friday afternoon, Sophie described an app to an AI. Three weeks later, forty colleagues relied on it. On Tuesday morning, IT shut it down. Nobody got hacked and nobody did anything wrong. The same story could play out in any company where business teams can now build their own tools. Why AI-built business apps fail, and how non-developers can build ones that last On Friday afternoon, Sophie described an app to an AI. Three weeks later, forty colleagues relied on it. On Tuesday morning, IT shut it down. Nobody got hacked and nobody did anything wrong. The same story could play out in any company where business teams can now build their own tools. Through Sophie's story, told twice, Adrien Maret shows why generating code has become the easy part, and what non-developers and IT teams need to build apps that remain operational a year later, without slowing anyone down or putting the company at risk.
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Adrien Maret Founder and CTO
Inférence locale, construction locale
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Barbara Delacroix CEO and Co-founder
Mieux construire ses propositions pour gagner plus de deals
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Dominique Cadi Head of Digital Transformation and Innovation 
Enabling marketing teams to build
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Vincent Terrasi Co-Founder, CTO and Head of AI 
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François Rommel Head of Data and Digital Performance 
De la loi au code : des flux de build agentiques pour les équipes non techniques
How do you build trust in an LLM-based system when its users are responsible for getting compliance right? At PayFit, we have been iterating over the last two years on a “from law to code” workflow with compliance experts: identifying relevant legal changes, extracting payroll parameters, and translating legal requirements into rules. Our main lesson has been to start with what matters to the business and the experts doing the work: which mistakes have consequences, what they need to verify, and where their judgment is essential. Those priorities shape what we automate, what tool we build, how humans stay involved, and how we evaluate the results. Through concrete examples, I’ll share how we involved compliance experts at the right points in the workflow: deciding what needs their attention, what they need to review, and where they should steer the system. We’ll explore what worked, where we need to iterate, and how these choices helped build trust in the outputs.
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Thomas Villaren Senior Staff Software Engineer
De l’application à la plateforme : quand les clients construisent avec leurs outils
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Sophie Cornay Business Unit Manager, Qonto AI -
Arnaud Serfaty Head of Fund Controlling
Session Softr, titre à annoncer
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Mariam Hakobyan Co-Founder and CEO
De l’atelier au tableau de bord : comment une chaîne de boulangeries construit ses propres logiciels avec l’IA
BO&MIE, the creative bakery brand founded in 2017, runs more than 25 shops in Paris, Aix-en-Provence, Bordeaux, Barcelona, Jeddah, Seoul, Riyadh and Kuwait City. Rather than buying software, CEO Jean-François Bandetchose to build the company's tools in-house with AI: an ERP for stock, purchasing and sales, and a Marketing Studio that runs Google listings, customer reviews, advertising, product visuals and local SEO. Both are built and used every day with AI agents such as Claude Code and Codex, without a dedicated developer team. Jeff shares what he has learned in the field about how AI concretely changes the way a physical retail business is run and grown.
5 démos d’IA complètement déjantées, et comment je les ai construites
What happens when you take the latest AI models and try a few questionable app ideas? In this talk, I’ll show you five demos I built to explore what’s possible, including real-time voice and decision models. We’ll try them out, look at what makes each one work, and take a peek at how I built them with Lovable. Expect plenty of demos, a few prompts, and ideas you might want to steal. You don’t need a technical background to follow along. The goal is to send you home thinking, “I could build something like that,” with a better sense of where to start
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Max Gfeller Technical evangelist
TBD panel delos x twin
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Hugo Mercier Founder and CEO -
Thibaut de la Grand’rive Founder and CEO
Session Compose, titre à annoncer
You can build it in an afternoon. Now keep it running for a decade, and explain one of its decisions to a court. After 25 years building software for municipalities and government agencies, Frode shares five practices that hold up in a public-sector security review: access control as the floor, no secrets in generated code, audit records written before features, rules a caseworker can read, and an off switch the customer controls. Plus four things we got wrong along the way
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Frode Ettesvoll CEO
Ce qui a cassé quand j’ai quitté la plateforme de vibe coding
I've built two AI products, LaunchDocs and Query Trenches, one without writing the code myself. I'm a former healthcare professional turned application security trainer, working a full-time job, with an AI coding platform as my entire engineering team. It worked, until I needed to own what I had built. When I exported the code and audited it, most of what looked finished on screen wasn’t. Features half-wired, no scheduler, no way to delete user data, and AI calls quietly running through US servers despite my EU-first promise. This fireside chat is the honest account of moving out. It covers rebuilding on my stack with Claude Code, switching to Mistral to keep AI processing in Europe, deciding what to rebuild versus keep, and what I would do differently on day one. This is for anyone shipping with AI tools who wants to know what’s really under the hood before their customers find out.
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Kim Rowden Founder
AI agents within enterprise with H (title TBD)
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Caroline Charra Head of Product
Session Airmakers, titre à annoncer
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Noam Say Founder
Dans les coulisses d’un stack d’automatisation de podcast, et comment l’industrialiser
Bruno Soulez has been coding since he was 12 and has spent the last seven years creating content, as creator and host of the If This Then Dev podcast. In this session he opens up the automation environment he has built around the podcast, and shows how he is now industrialising those automations with Hey Regis.
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Bruno Soulez Podcast host
Session WorksPlatform, titre à annoncer
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Mohammed M'HAMDI CEO
Panel creative & interactive building (title TB
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Pierre Lacombe CEO 
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Timothée Le Borgne Founder and CEO 