Automated scam checking on Leboncoin: harder than it looked
A prototype scam detector for Leboncoin listings, and two reality checks that reshaped the project along the way: the architecture, then the photo signal itself.
August 30, 20264 min
Articles
19 articles
Before building multi-stop delivery, we checked if the problem actually existed
A request kept coming up verbally. Before prioritizing it, we cross-checked that signal against real usage data: ~10% of orders, 15 clients affected. A product decision retrospective from Marion Livraison.
August 13, 20263 min
NPS, Google reviews and onboarding: what we automated in July
Two automations to turn satisfied customers into advocates and convert inactive signups into first-time buyers. A hands-on account of what we shipped at Marion Livraison.
July 30, 20263 min
What Our Security Logs Revealed About a Product Problem
Repeated security alerts were actually hiding a shared-password management problem. A case study from Marion Livraison on turning a technical signal into a product insight.
June 17, 20262 min
Why Our Users Identified the Problem… But Refused Our Solution
Identifying a user problem does not guarantee the adoption of your solution. A case study from Marion Livraison on the paradox between problem validation and resistance to change.
May 11, 20264 min
A Hundred User Interviews Later: the Lessons
Discover how interviews and listening to users are essential to identify real needs and create a product that meets field challenges.
April 14, 20263 min
My MVP pipeline: from idea to production in one commit
VS Code, Git, Coolify and Supabase — the stack I use to test ideas fast and ship to production without friction. Why I chose these tools, how they connect, and what this says about a way of working.
March 5, 20263 min
From 0 to 500 construction leads in one click: how we connected the SIRENE API to our CRM
How we automated qualified prospect imports into our CRM by combining France's official SIRENE business registry API with a Python script — and the traps we avoided along the way.
February 5, 20264 min
LeBonCoin: Why I'd Love to Permanently Hide Certain Listings
When saved searches become noisy because irrelevant listings keep coming back. One simple feature could change everything.
January 14, 20262 min
LeBonCoin: When Product Security Breaks the User Experience
A good security practice can become a real product problem when it fails to anticipate alternative scenarios. A look at a blocking flow on LeBonCoin.
December 10, 20253 min
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