Now available on LeanPub

The Wall Has a Door

Build with AI

This methodology is about protecting you from vibe coding AI slop. It is about enabling you to develop a tool you can build, use, and trust long-term.

You do not need expensive tools. You do not need a technical background. You need the desire to solve a real problem — and a methodology that keeps you from building something you can't trust.

The Wall Has a Door — Build with AI by Nick Fantini
This book is for you if...

You know exactly what needs to exist. You just never thought you could build it.

🍳
You're an operator, not a developer

You understand your problem better than anyone. You've been waiting for someone technical to care enough to build the right solution. This book gives you a way to build it yourself.

⚠️
You've tried AI and don't trust what it builds

You've seen AI produce things that look right, run for a week, and then quietly fall apart. This methodology is specifically designed to protect you from that — before it costs you time and trust.

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You want to build something that lasts

Not a prototype. Not a demo. Something you can put into real use, rely on daily, and expand over time without starting over. That's what this methodology produces.

What this book actually is

Not a prompt guide. Not a coding course. A methodology.

Most AI books teach you what to type. This one teaches you how to think — specifically, how to think like someone who has been managing complex systems and defining what good looks like for thirty years.

The methodology was developed across four months and three software products built from scratch. No coding background. No technical team. Three different technology stacks. The same system applied to each one.

The result isn't a set of prompts. It's a way of working that makes AI reliable instead of impressive. There's a difference. This book is about that difference.

Specification before code

AI drifts when you're vague. This methodology forces precision upfront, so what gets built matches what you actually need.

Problem first, tool second

The fastest way to build something you can't trust is to start with a tool and work backward. This methodology starts with the problem and never leaves it.

Verification at every step

Running is not the same as right. This methodology builds quality checks into the process so problems get caught before they compound.

Built to last without you

Everything built with this methodology is documented, expandable, and designed to keep running long after the project closes.

Nick Fantini
About the author
Nick Fantini

Nick spent thirty years in food service operations before learning to build software. He started where most people start — asking an AI a question on a cruise ship — and ended up with a methodology that produced three working products across three different technology stacks in four months. No coding background. No technical team. Just a way of working that treats AI as a capable executor and domain expertise as the thing that makes the direction worth following. This book is that system, documented.

Available now

Start building something you can trust.

Read it once and you will never approach an AI build the same way again.

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