Product studio · Nantes and Saumur, France
Are your days lost between spreadsheets, double entry and tools that don't talk to each other? We take the time to understand your business, then build with you the software that gives you those hours back, with AI where it really helps.
You know what slows you down every day. Our job is to turn it into a simple tool your team actually wants to use.
No vibe coding
AI saves us time, and saves you time. But your software is still reviewed, tested and shipped by engineers.
Your processes live in spreadsheets, emails and three subscriptions that don't talk to each other. We bring them together in software shaped around the way you work.
Sorting emails, re-typing, chasing, writing the same report again: AI takes over what wastes your time, and you keep the final say on every decision.
Tested, monitored, maintained and ready to grow with your business. And after launch, we stick around.
From the first conversation to launch, you always know where your project stands
Your pain points, your tools, your goals
Something clickable before the budget is committed
Short releases you validate as we go
Monitoring, upgrades, new ideas
Builders, sports coaches, estate agents, tech teams: we build and run our own apps for them. Your software gets everything we learned along the way.
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Two people for your whole project: one understands your business, the other makes sure your software holds up
Product
He starts by understanding your business, then turns it into a product your team actually uses. C(P)TO and freelance developer in Nantes.
Engineering
He makes sure your software is fast, reliable and ready to grow. Software engineer at Cantina Labs, previously at BeReal.
A product studio founded by Guillaume CRESPEL (product) and Fabien JUIF (engineering), based in Nantes and Saumur, France. We build custom software and AI-powered apps with you.
No. We work with founders, startups and small and medium businesses. If a tailored tool can save you time every week, it is worth talking about.
With a conversation about your day and what slows you down. We tell you honestly whether custom software is the right answer, and if not, what we would do in your place.
No. We add AI where it saves time (reading, sorting, drafting, planning), always with a human in the loop. Plenty of problems are solved just fine without it.
No. We use coding agents every day to move faster, but architecture, review, testing and production remain engineering work.
TypeScript, React, Node.js and Go for the code; Kubernetes and Google Cloud for infrastructure; Claude, agents and MCP for AI. We pick what fits your project, not the other way round.
Tell us what wastes your time. We will come back with concrete ideas, on WhatsApp or LinkedIn.