// for founders who need to show, not tell
Twenty-four hours after scoping you get something to open: a working journey, with demo data. A website, a web app, an iOS and Android mobile app or a desktop application, depending on what your idea calls for.
// the contract
A deadline promise is worthless unless someone says when the clock starts and what is inside it. Here are both lists, the same ones written into the proposal.
At the end of scoping, not at signature. Scoping is a one-hour video call: together we write the main journey, the screens, and above all what we are not building. Until you have approved that list, the clock does not run.
Nothing on that second list is abandoned: it is the work that comes after, quoted separately and without urgency. See the production step
// how
Speed is not about fingers on a keyboard. It is about decisions taken beforehand, and safety nets that catch mistakes without me.
Projects slip because the need gets discovered while building it. We write it down first, in one hour, and we hold the line. Ideas that show up during the 24 hours are noted, not added.
Next.js or Astro depending on the need, Supabase for data, AWS or Cloudflare for hosting and CDN, React Native for mobile. No technical choice to debate mid-sprint: the same building blocks from one project to the next, and I know their traps.
Already have a site? That is not an obstacle, it is material: the copy is written, the structure is known, the search ranking is earned. I start from there to rework the design, straighten out the SEO or add what is missing. Your live site keeps running, untouched.
The prototype is not frozen in code. Your copy, images and pages go through a CMS you log into: you fix a headline without calling me, and the day the product goes to production, that piece is already in place.
In 24 hours the time does not go into plumbing. The data is fake but realistic, prepared with you so the demo speaks. Wiring the real thing comes later, and convincing people is a different job from connecting systems.
I write, review and test with Claude Code, specialised agents and MCP servers wired into my own tools. That workflow is rehearsed on my own projects before it serves a client. It is what turns ten days of work into one, and it is what explains the price.
The project rules (no dead links, no page without a title, no forgotten copy) are verified at build time. The build fails before you do. Speed without a safety net just ships bugs sooner.
No project manager, no daily status report, no team meeting to fund. You talk straight to the person writing the code, and that person has ten years of production behind them.
// already done
Both sites were built this way, and the durations come from the Git history, not from an after-the-fact estimate. Neither was a 24-hour deliverable: they are complete projects, run at that pace.
Site and CMS in under 14 h
Dance, percussion and roller-skating school, Ouakam (Dakar)
A single Astro page, 56 KB, served statically so it stays readable on a mobile connection in Dakar, plus a CMS so the client can change her own schedule. First commit at 00:28, last one at 14:21 the next day. The domain switches over when the school is ready.
Live in under 48 h
Children's theatre show, Un'Pact company
Under 48 hours between the first commit and the live site: fourteen pages, a quote form wired to a serverless function, a sitemap, landing pages per audience (nursery, preschool, works council) and automated checks on every build. Every merge to the main branch ships to production on its own.
lemondeencouleur.fr// pricing
Fixed price
€500
Five hundred euros, announced before we start and payable at the demo. It covers scoping, the 24 hours of building, the CMS, the staging link and the final call. If your scope does not fit the format, I tell you during scoping, before you have paid anything.
// references
10+ years of experience working with leading industry groups.
// frequently asked
It is a fair question. The answer has three parts: the scope is written and frozen before the clock starts, the data is mocked so no time goes into plumbing, and I reuse building blocks I know inside out. The Art Fusion Sénégal site, CMS included, was built in under fourteen hours. The dates are in the Git history and I can walk you through them on a call.
Because my workflow is rehearsed. Scoping is scoped, the stack is decided in advance, the building blocks carry over from one project to the next, and the build is assisted by Claude Code and agents I wrote for my own needs. One day with that tooling produces what used to take a week without it. The price follows the real time, not what it would cost someone starting from scratch. It is also a way to meet over a deliverable rather than a quote.
Yes, and it is often the best starting point: the copy is written, the structure is known, the search ranking is earned. In 24 hours we can rework the design, restructure it for SEO or add the missing feature, all on staging. Your live site keeps running, untouched.
Going to production, wiring your real data, user accounts, payments, load handling, full GDPR compliance and app store releases. The deliverable is a private staging link, not a site open to the public. The full list is higher up this page, and it is repeated in black and white in the proposal.
Then we do not do 24 hours. During scoping we either find the journey that fits the format, or I offer you a longer engagement on the same fixed-price principle. You pay nothing until that is settled.
Yes, 100%. The GitHub repository is in your name from the first commit, along with the documentation and hosting access. No dependency on me: any developer can pick the project up the next day.
You have a link to show and a written list of what is left. Three ways forward: you stop there and test your market, we take the prototype to production with your real data (that is the Prototype to Production offer), or we keep going with a recurring engagement if the product takes off.
Yes, fully remote, for clients in France and internationally. Scoping on video, progress visible continuously on the staging link, final demo on video. Based in Paris if meeting in person makes sense.
Book thirty minutes. We look at whether your idea fits the 24-hour format, and I tell you straight if it does not.
// not your profile?
Startups & Scale-ups
A senior technical leader who owns your stack, architecture decisions and product roadmap. For growing startups & scale-ups.
Startups launching their app
A senior React Native engineer (TF1, PMU, Zeturf) who designs, builds and ships your iOS & Android app, then hires your team.
Pros & makers who prototyped a tool
Your Lovable, Cursor or v0 prototype turned into a live, secure app ready for your users. Three tiers depending on your needs.