A new site for the Lab, on the Lab's own CMS

The old site said 'ESN in Lille'. It was true in 2019 and thin by 2026: four products of our own in production, two built for their owners, a public utility and a town hall among the clients. The new site says what happened, a lab that makes software, its own and yours, and gives each product a page rather than a logo in a row.

It also splits the audience without splitting the site: one door for a public buyer, one for a company that wants something built, one for the products. The dossiers and the journal carry an audience each, so the public-sector page shows its own reading and the studio page its own.

The site is a client of the CMS engine that runs Agora: the same blocks, the same console, the same publishing path. Building it that way found a dozen things a paying client would have found later: a public bundle that carried the whole console's stylesheet, a share image no page declared, a heading order the crawler could not follow. Each fix went into the engine, and Eau de Paris' instances got it the same day.

It also set a bar. Every page passes a technical SEO check and renders without horizontal overflow at seven widths from 360 px up; the header folds on a phone, the theme follows the system and can be overridden, and the whole thing weighs a fifth of what it did. That is the bar a client's site gets by default now.

Eleven dossiers, six products, eleven case studies, this journal. The English side is thinner than the French and will stay so for a while; the trust strip on the public-sector page says 'self-assessment under way' because it is. If something reads as a promise, it is a plan with a date next to it. The rest is what runs today.