If you're a developer, you know the drill: you get a great side-project idea, open your code editor, start planning the architecture, get lost tweaking CSS alignments, and before you know it, the momentum dies. Another project ends up abandoned in your GitHub repositories.

Recently, I decided to break that cycle and ship GranaCheck—a web app that performs a financial health "checkup" and generates a personalized budget split (dynamically adjusting rules like 50/30/20 based on debt or emergency savings).

The twist? I used Artificial Intelligence as a full product team, broken down into clear, specialized stages. Here is the step-by-step breakdown of how it worked and how you can apply it to your next project.

Idea Validation & Business Logic

Instead of jumping straight into coding, I used AI as a Product Manager (PM).