First Commit · 2026-06-03 · 41 min
What if your browser knew your entire workday - and could quietly handle the parts that drain your focus? In this episode of First Commit, Eliya Elon and Laura Hamilton sit down with Regina Lin, co-founder and CEO of ThirdLayer, the company building Dex - an AI workspace that lives inside Chrome and acts as a true knowledge worker for the browser. Regina started building Dex as a college side project with her co-founder Kevin while juggling a math degree and years of competitive piano performance - originally just trying to get GPT-4o to order DoorDash at midnight. The insight that it could replace entire categories of manual, browser-bound work crystallized when they snuck into a Boston AI conference with fake lanyards and ran into someone managing hundreds of UiPath bots. What Dex became is a hybrid agent that pulls context directly from the browser while executing actions through precision tool calling - not screen scraping, not MCP - built for the knowledge workers who spend every minute of their day living in tabs.
Building AI Agents Enterprises Will Actually Trust | Mayada Gonimah, Thread AI73 / 100On Friction, Conviction, and Knowing When to Join Instead of Found | Dor Fledel, AnthropicE67: Monitoring the Probabilistic Stack with Alexis Gauba (Raindrop)E66: From Alerts to Action with Anish Agarwal (Traversal)E65: Infrastructure for AI-First Teams with Ivan Burazin (Daytona)