Journal

We write down what we learn.

The studio's notes and positions.

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Security

SMS is not a second factor

A phone number can be hijacked at the carrier, and that hijack leaves no trace on the victim's side.

1 min read

Agent-Native

Selling what we practise

The studio's site is built with the architecture it sells. That is a constraint, not a turn of phrase.

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Services

DiscoveryFrame the product before the first line of code, so the budget builds instead of correcting.
Product designAn interface that holds together, carried by a design system your developers can keep alive without us.
Web developmentA fast web application that holds up over time, with the tests and delivery chain to match.
Mobile developmentAn iOS and Android app from a single codebase, published on both stores.
Infrastructure & securityInfrastructure described as code, and Zero Trust access that does not rest on a text message.
Maintenance & evolutionA product kept current, watched and fixed, with someone who answers when it breaks.
Agent-Native Architecture AdvisoryMake an existing product agent-operable without rewriting it — and without opening more than it should.

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YorroProduct engineering studio in Abidjan and Paris. We design, we build, we ship.
ServicesBuild a product end to end, or advise a team on its agent-native architecture.
LabsWhat the studio has built: products, prototypes and research, with where each one actually stands.
TutorialsStep-by-step guides drawn from real projects, grouped into tracks by topic.
JournalThe studio's notes and positions.
ContactDescribe your project; you get a framing back, not a boilerplate quote.
AboutWho runs the studio, how it works, and what it turns down.
Discovery AgentDescribe your project in conversation; the agent ticks the modules and produces an indicative estimate.

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