Marianne
Legal tech, complianceDue-diligence software for French notaries. Every party in a property file, checked against official registers and sanctions lists in one case view.
I turn hard-to-explain products into websites every buyer on the committee understands: positioning, copy, design and code, from one person, at a fixed price.
Replies within 24h from Nathan, formerly on the AI Core team at OVHcloud.

Designed in Paper and Figma, built with the stack below.
Your engineer understood the site. The other three, who also sign, couldn’t find their answer and moved on.
CTO
Finds it
“How does it plug into our stack?”
Usually answered. The one reader your site was written for.
CFO
Leaves
“What does it cost us, and what do we get back?”
No numbers, nothing to forward to the board.
Head of ops
Leaves
“Who on my team has to change how they work?”
Features, but nothing about the rollout.
Procurement
Leaves
“Where does our data live, and who signs off on security?”
No security page, no path to a contact.
I plan the site around all four, so each of them finds their answer before the first call.
Most of them are live. Open them and judge the work yourself.
Due-diligence software for French notaries. Every party in a property file, checked against official registers and sanctions lists in one case view.
Costing and paperwork for artisan bakeries. Invoices, ingredients and recipes in, a cost price for every loaf out.

Real-time market dashboard. Positioning, marketing site and product UI for a dense, technical product.

Kanban project management. Marketing site and product UI, from positioning to launch.

A landing page written for skeptical engineers who arrive from search and verify everything.
Tell me what makes yours hard to explain, and I will tell you where I would start.
“Our product is dense and regulated, and Nathan understood it faster than people who have worked on it for months. Notaries now get what we do from the homepage alone.”

“Bakers do not care about software, they care about their margins. Nathan found the one sentence that makes them stop and read, and built the site around it in three weeks.”

Here is what I do, what you do, and what you keep at the end of each step.
Day 1
Week 1
Weeks 2 to 3
Week 3
NathanLearns what you sell, who signs, and what success looks like.
Writes the positioning, sitemap, conversion path and every line of copy.
Designs and builds it in Astro or Next.js, fast and accessible.
Launches it, wires up analytics, and documents everything.
Day 1

Nathan: Learns what you sell, who signs, and what success looks like.
Week 1

Nathan: Writes the positioning, sitemap, conversion path and every line of copy.
Weeks 2 to 3

Nathan: Designs and builds it in Astro or Next.js, fast and accessible.
Week 3

Nathan: Launches it, wires up analytics, and documents everything.
The first call is free and takes 15 minutes.
I come from engineering: the AI Core team at OVHcloud, full-stack work at NETexcom, agency projects at BASE SUD. You will only have to explain your product once.
I do the positioning, the copy, the design and the code, so nothing gets lost between a strategist and a developer who never met you.
Before anything is designed, I map what you sell, who signs, and who has to agree with them. Then I build a fast site that gives each of them a reason to say yes.
Nathan Donadey
Founder, Altair Studio

One week on your own product. You get the positioning, the sitemap, every line of homepage copy and a written plan, and you see firsthand how I think and how fast I move.
PS: two founding places left. 15% off the build and six months of support, in exchange for a public case study.
No retainer, no minimum term. The number you agree to is the number you pay.
€2,000
Positioning sprint, one week, fixed price
Still unsure? Talk to the person who would do the work.

Pick a slot that suits you. We'll talk about your project, your buyer, and whether I'm the right fit. No charge, no obligation.
Loads Cal.com on click
Because you can judge the work instead of a logo wall. Every project on this page was positioned, designed and built by me, and every claim on this site is checkable: open Krust, Orba or Exogen, run the page through PageSpeed, read my background. On top of that, the first call is free and the sprint is credited in full against the build, so the only thing you risk on a first conversation is 15 minutes.
Companies whose product is hard to explain, usually in AI, SaaS, fintech, deep tech or B2B, from funded startups to established teams that want a premium site. If a buyer has to understand something before they sign, it is a fit. I work remotely with teams anywhere, in English and French.
Because the part AI does well is the part that was never the problem. It will give you pages. It will not decide what your company should claim, work out which person on the buying committee is actually blocking the deal, or write the paragraph that makes your product land with someone who is not an engineer. That is the work here, and the build is what proves it. If all you need is pages, use a generator and keep the money.
Fifteen minutes on your product, your buyers and your timeline. If there is a fit, I propose the positioning sprint, credited in full against the build. The diagnosis happens there, properly, with a written plan you keep either way.
You do, entirely, once the final invoice is paid: clean, documented code in your repository, on your hosting, with analytics wired up. No proprietary builder, no license, nothing that stops another developer from taking over. If you want me to stay on after launch, there is an optional 90-day after-care engagement at a fixed price.
You see the direction in week one, before the build, and you get revisions at that stage. Because copy and structure are agreed before anything is designed, there is rarely a surprise at the end. If the direction is wrong after the first round, you can stop and owe nothing further.
You get a reply within 24 hours, and an honest answer if it is not the right fit.

or write to contact@altair-studio.com
I work remotely with teams anywhere, in English and French.