YouTube08 Apr 2026

DHH’s new way of writing code

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The Pragmatic Engineer

David Heinemeier Hansson (DHH), creator of Ruby on Rails and co-founder of 37signals, discusses how AI tools are reshaping software development. DHH details 37signals' "agent-first" approach, where AI agents handle initial coding drafts, reviewed and refined by experienced developers. He emphasizes that AI empowers senior engineers, enabling them to tackle ambitious projects previously deemed impractical, such as optimizing the fastest 1% of requests. DHH also stresses the importance of beautiful code and design, arguing that aesthetics are crucial for correctness and user satisfaction. While acknowledging potential anxieties around AI's impact on programmer roles, he maintains that skilled developers who embrace AI will become more valuable, focusing on product vision, communication, and system oversight.

Outlines

Part 1: Craftsmanship, AI Impact, and Origins

Part 2: Design Methodology and AI Evolution

Part 3: Industry Challenges and Changing Roles

Part 4: Hiring, Career, and Well-being

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