Postman began as a side project by Abhinav Asthana and his two co-founders, and turned into the most widely adopted API collaboration platform, used by millions of developers worldwide. In this conversation, Abhinav breaks down why developer feedback matters more than early paywalls, how “just ship” beat long strategy decks, and why he’s still bullish on San Francisco. We cover raising capital without making it the point, scaling from three founders to ~850 people across 20+ countries, and the hard lessons of hiring—and replacing—leaders as a company grows. Plus: Factorio, parenting, and what it really means to build “developer-first.”