Hey everyone, I have some news to share: Four years ago I joined Polygon, coming off a long tenure at Jobandtalent where I worked with one of the best engineering teams in Spain. I grew a lot there scaling systems and databases to millions of users and bringing Web 2 best practices into a fast-moving company. Then I wanted to go deeper into distributed infrastructure and brought that experience into the Web3 ecosystem at Polygon. Over time I got into protocol internals and client development. The most rewarding chapter of my career so far. As you may know, everything comes to an end. Back in mid-January, there were layoffs at Polygon x.com/vcastellm/status/20121…. I took some time to reflect on what I actually wanted to do next. My timeline has been on fire since the releases of Claude Opus 4.5 and Codex 5.3, no surprise, since I’d been delivering features at Polygon without writing any code since November. The intersection of AI and infrastructure had been pulling at me. Then came the right timing. Matthew Rossi, a friend and former colleague at Polygon, reached out. His team had built something interesting, and uncovered an even more interesting problem underneath it. This is why I am genuinely excited to announce that I am joining Matthew and Katara AI as technical co-founder. At Katara AI katara.ai/, we are building compliance-native RAG infrastructure for enterprises in regulated industries. The specific problem: most AI infrastructure was built for speed, not for the governance questions that arrive after deployment, what data entered the system, where it went, who had access, and whether you can prove it to an examiner. AI adoption in financial services, legal, and healthcare is moving faster than the infrastructure those industries actually need. That gap is worth fixing. I am not leaving the Web3 world entirely, I will continue advising projects I believe in. But this problem is too important and too well-timed to ignore. We will be building in the open. Follow along as we navigate what it actually takes to build compliance infrastructure for the AI era. If you are working on enterprise AI deployment, regulated infrastructure, or just want to follow the journey, my DMs are open.

🤖Build Your Own AI Agent with @KataraAI By the end of this talk, you’ll know how to set up an agent using RAG! No gatekeeping, just real tools. 🎥 From Agents Demo Day in Austin, powered by @MorpheusAIs. #DeAI #AIagents #MorpheusAI #RAG

Another mini /brainpower_podcast (@brainpower_x) from the MOR Agent Builder Demo Days in Austin, hosted by @MorpheusAIs, this one with @secoya of @kataraai, who you will recognize from the recent full-length /brainpower episode 10 (linked below).