Personal blog of Julien (jvoisin) Voisin

OpenAI's ad platform has two halves. On the ChatGPT side, the backend injects structured single_advertiser_ad_unit objects into the conversation SSE stream while the model is responding. On the merchant side, a tracking SDK called OAIQ runs in the visitor's…

Regression summary Issue #47027 was closed by @bcherny in February saying "This was fixed in v2.1.92." I'm running v2.1.111 (19 versions past the fix) and the exact same behavior repr...

We switched to a frontier model and our costs went down. Here's the architecture that made it possible.

In April 2026, Canonical disclosed 44 CVEs in uutils, the Rust reimplementation of GNU coreutils that ships by default since 25.10. Most of them came out of an external audit commissioned ahead of the 26.04 LTS.
I read through the list and thought th…

In a letter, Bundestag President Klöckner recommends that MPs switch to the BSI-certified messenger Wire to curb phishing threats.

And why that shape demands a compiler.

A memorial to the messengers, social networks, browsers and websites the internet forgot.

A report finds a third of newborns use devices for more than three hours, despite government advice that under-twos have no screen time at all

: Bemoans frequent outages that mean he’ll move Ghostty elsewhere

With climate change impacting the world’s coffee supplies, can physics help you reduce waste by brewing smarter? Michael Allen investigates

A Firefox extension that enables and manages Firefox's built-in adblock-rust engine - electricant/adblock-rust-manager

Ask ChatGPT to estimate the carbs in your lunch. Now ask it again. And again. Five hundred times. You’d expect the same answer each time. It’s the same photo, the same model, the same question. But you won’t get the same answer. Not even close — and the differences…

Introduction It has been nearly a decade since seminal reports and associated research documenting the surprising frequency of accidental injury in healthc...

Git is decentralized, but what of the rest?

Introducing Mistral Medium 3.5, remote coding agents in Vibe, plus new Work mode in Le Chat for complex tasks.

They built it. They're scared of it. They're selling it anyway.

A federal court ruled that firearms parts without serial numbers could be protected under the Second Amendment. That’s good news for Wyomingites who build…