About
I dropped out of École Normale Supérieure at 21 to build Doctrine, which became Europe’s largest legal information platform with 25,000 customers. Along the way we sued France before the European Court of Human Rights to force the open data of court decisions. We sold Doctrine to Summit Partners, a private equity firm, in 2023, and it was then sold to LexisNexis in 2026.
I moved to San Francisco and started Fintool, born out of my admiration for Buffett and Munger. I wanted to build an AI that could analyze businesses exactly like Warren does: reading filings, building conviction one annual report at a time. Fintool was backed by Y Combinator, Anthology Fund, and Menlo Ventures, and acquired by Microsoft in March 2026.
Now at Microsoft, I lead a team building proactive AI agents that understand your work, operate in the background, and get things done before you ask.
Outside of work, I train Brazilian jiu jitsu and bike around San Francisco.
Writings
- My Agent Stack For Automating My Personal Life
- Long Running Agent Engineering
- Model-Harness-Fit
- Agent Memory Engineering
- Hard Lessons Building Agents Since GPT-3.5
- Microsoft Has Acquired Fintool
- 10 Years Building Vertical Software: My Perspective on the Selloff
- The LLM Context Tax: Best Tips for Tax Avoidance
- The Crumbling Workflow Moat: Aggregation Theory's Final Chapter
- ChatGPT Killed the Web: For the Better?
- LLMs Eat Scaffolding for Breakfast
- Lessons from Building AI Agents for Financial Services
- Model-Market Fit
- Are LLMs Plateauing? No. You Are.
- The RAG Obituary: Killed by Agents, Buried by Context Windows
- Domain names I own
- But But, You Were Supposed to Be a GPT Wrapper?!
- Fintool, Warren Buffett as a Service
- How to build a shitty product
- Burning Billions: The Gamble Behind Training LLM Models
- What We Learned Building the Largest GPT-Telegram Bot
- The End of My Crypto Explorations
- Startups Selling Sand in the Desert
- Panic in Startupland!
- Where is Your Fire Phone?
- Look How Big My Team is!
- Death by Fundraising
- Putting your Reputation at Risk
- Incentive and Skin in the Game
- How much Leverage?
- Surviving Capitalism with Competitive Moats
- How to Calculate Intrinsic Value
- How to Buy Back Shares
- How to Reinvest Earnings
- The Dichotomy of Leadership
- Margin of Safety
- Leadership Lessons Learned in Combat
- The Power of the OKR Framework
- Compounding with Long-Term People
- Facing the Innovator's Dilemma
- The Intelligent CEO
- Value versus Growth Investing
- The Impact of the Highly Improbable
- Have Fun Staying Poor!
- Playing Monopoly like a Value Investor