12. Sacha Vauclin, GTM at Scarlet - From BeReal's US Growth to Certifying AI Medical Devices

Sacha Vauclin cold DM'd the founder of BeReal and talked his way into the French social app in its earliest days. He then ran the "underground" playbook that cracked the US market, campus ambassadors and frat party sponsorships, until the product hit product-market fit. From there he moved to London for Vauban, the platform that digitalised SPV creation and let angels back companies like SpaceX and Revolut with smaller tickets, before it was acquired by Carta. Now he's in a go-to-market role at Scarlet, a health tech company that certifies software and AI-based medical devices. In this episode Sacha explains why traditional notified bodies, some over a century old, are built to certify surgical gloves rather than AI that ships updates every week, and how Scarlet uses expert teams and technology to run fast, software-focused reviews instead. He makes the case that certified ambient scribes could claw back the 40% of a doctor's day lost to admin. He also shares the through-line behind every move: deep curiosity, and a habit of interviewing not just power users but the people who quit the product. If you care about GTM in regulated markets, or building things that matter, this one's worth your time.