Marc Vallverdú

Every week, I take one AI development and break down what it actually means for your business. No prompt tips, no tool listicles — just the signal that matters, from someone doing the implementation work firsthand. I write While You Were Working (wyww.substack.com), a weekly newsletter for executives and operators navigating AI transformation. By day, I'm COO at Atolls, running operations across 23 markets with 1,000+ people. Here's what I spend my time on: AI Implementation: Working with 20+ departments to find practical ways to use AI — not the hype version, but stuff that actually makes people's jobs easier. Operations & Scaling: Building systems and teams that can scale without falling apart. I've learned what works (and what definitely doesn't) the hard way. Product & Tech: Bridging the gap between what the business needs and what's technically possible. I code on the side, which helps me speak both languages. The newsletter comes from the same place as my day job — figuring out the gap between AI hype and what actually works in practice. Happy to chat if you're on the same boat: → Where AI can actually help your operations (and where it can't) → How to get teams to actually use AI tools → Building systems that scale without breaking Drop me a message if you want to compare notes on making AI work in the real world