Free app · local alerts
JePréviens
30,000
users, town halls equipped
Aired on prime-time national TV (TF1, M6). Two years at almost zero revenue, and since this summer town halls pay for the setup. Everything it taught me is online.
Independent developer · AI trainer
Real projects, real numbers.
And I teach you to do the same.
“I thought going independent meant making $10,000 a month, easily. Twenty years later, here are the real numbers.”
I've been a developer for 20 years, independent, working from home in the French countryside. An e-commerce business, apps on the stores, a logistics SaaS I co-founded, an app that aired on prime-time national TV: it's all here, with the numbers, zeros included. And if you want to learn to do the same for your own business, I train, on your real project.
One video a week on YouTube. Training on your real project, for those who want to go further.
Real projects, real numbers
30,000
users on JePréviens, my free app that aired on prime-time national TV. Revenue: close to nothing.
20 years
of development: bank cards, a trading platform in Switzerland, e-commerce, and for 3 years now, 100% from home.
300+
customers for Smoke-Defender, my smoke-generator e-commerce, storefront built with AI.
1 / month
“Talk with an AI expert” show for a US agency I met on Reddit.
My projects
What one developer alone can get done. With the numbers, zeros included.
Not a showcase. What's alive, what's asleep, what's starting, and what it earns. Updated every month with the channel's numbers.
E-commerce · smoke generators
Smoke-Defender
300+
customers, ≈ €2,400/month
Storefront built with AI, ads I've run myself for three years, sales on Amazon, and the very real customer support that comes with it.
SaaS · road carriers · co-founded
Axiotrans
€0
collected, first prospects on the phone
Born out of an app I built for one client. Live on both stores, payment in place, and the first calls are coming in.
Mobile app · n8n monitoring
n8nEye
$271
in sales worldwide, $0 of ads
Built for myself, one badly-done competitor, a good store listing. It isn't revenue, it's a market test that worked.
Talk with an AI expert
A monthly live show for Lean Marketing's US community.
Real questions from business owners and operators, answered with what I've actually shipped, not with theory. I also built their AI content engine, used by 200+ people. If you saw me there and want the same session for your team or community, that's a workshop or a keynote: tell me about it in the 15 minutes.
My YouTube channel is in French: one video a week, my struggles, my wins, and a monthly revenue breakdown project by project. If you don't read French, the projects page carries the same numbers.
Latest video, in French: “I thought going independent meant €10,000 a month. Here's what I found instead.”
Got an idea?
One day on your computer, with your hands. By the evening, your project exists.
Everyone who writes to me has the same problem: an idea they believe in, and no idea how to build it or how to get it in front of people. Too many tools, too many videos, no time to sort through them. In one day, one-on-one, we decide, we build the first working piece, we write the plan to get you known. The next day you get your roadmap as a PDF. And for 30 days, I answer your questions.
Not sure you need it? Ten questions, two minutes, an honest answer.
The Kickstart Day
$990
Remote, screen sharing
- Your tools installed and configured on your computer, with your own accounts
- A first working piece, built with your hands
- The ability to fix and grow your site or app on your own
- Your visibility plan: the right channels, the right techniques, one action for tomorrow
- A personalised PDF the next day
- 30 days of questions over Telegram, answered within 24h
Out of your own pocket, no paperwork. If you want the whole website live and found, see the three-day program below.
Training, for businesses
No theory class. We build your real project, and you leave able to run it alone.
You have an idea, or a business, and you know neither how to build it nor how to get it known: that's exactly why I train. The website is only the first deliverable. What counts is what comes after: actually being online, being found, and knowing how to keep going without me. And because a project moves, and usually needs a small update two months later, we keep a half-day for that. One principle: no made-up exercises.
3 days · including a half-day follow-up
Your website and your visibility, with AI
You leave with your site live, found on Google, and you know how to keep it alive yourself.
$2,700 Paid directly, in US dollars
My first trainee left with her site live after 3 days, and a half-day kept in reserve for later. The training organisation that handled her paperwork then bought the same training to rebuild its own website. That's my best reference.
Prefer a one-off? The AI audit ($350) and the one-hour consult ($165) are still there, paid at booking.
Why me
No guru. A developer who tried everything and tells you how it went.
I show the real numbers
Revenue, project by project, ugly months included. An app with 30,000 users that earns almost nothing has an explanation. And I give it.
I actually build
I don't sell slides about “the future of AI”. I have apps on the stores, an e-commerce that runs, clients who pay. What I teach, I did the week before.
I tell you about my mistakes too
Seven years “freelance” at a single client, years of unpaid support, three hours of free consulting given to a former client who never called back. It'll save you from repeating them.
I wanted to work from home for twenty years. It took AI to get me there. If you're independent, or about to be, I can save you the years I lost. My story, for real →
Fifteen minutes, and you'll know.
You tell me about your project, I tell you honestly what AI can change for you, and which format makes sense, or whether none does. No commitment, no pitch.
Book a free 15-min call →
Free, no commitment. Anything you book afterwards is paid at booking.
Roméo Roy, sole proprietorship (SOS Développeur)
SIRET 822 106 183 00012
Based in France
Remote worldwide · on-site anywhere in France