Zero Lines of Code.
Most AI-and-SaaS books are written by people early in their careers, excited about a new tool. This one is different: Barnhardt rebuilt a production SaaS after 45 years of writing code without typing a single line himself, working solo with AI,instead of a team or agency. This is not a book about AI hype; it is the real story of a nine-month rewrite, including the disasters and breakthroughs along the way.
What makes it credible is the honesty about how messy the process actually was,from a three-week “finished” application riddled with three hundred TypeScript errors to a live production system handling real business for real clients. Barnhardt’s core argument cuts against a lot of no-code hype: a veteran developer’s judgment matters more in the age of AI, not less. He details the specific framework that emerged from the rebuild, a Claude.md system for turning unreliable AI output into production-ready code, a structure of hooks, skills, and agents that makes AI obey your standards, and a task automation system that completes ten development tasks in thirty minutes. There is also a real economics: what it costs, what it saves, and why $200/month can replace a dev team.
Who this is for: experienced developers or technical founders skeptical of AI-assisted “vibe coding” hype who want a grounded, honest account of what it actually takes to ship production software with AI and non-technical founders who want to understand what good AI-assisted development discipline looks like before hiring or building it themselves.
Get the book here → https://amzn.to/4wHxd6G
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Zero Lines of Code. By Glen Barnhardt.
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