How I Built a Side Project in 1 Day With AI: A Real-World Walkthrough

Twelve months ago, building a deployable side project in a single day was ambitious — the kind of thing that required a rare combination of focus, experience, and luck. In 2026, with the right AI tools and workflow, it's repeatable. I've done it several times, and this is a detailed account of exactly how. This isn't a "vibe coding" story where AI writes everything and you watch. It's a practical account of how AI tools accelerate specific parts of the development process — and where you still need to think carefully and make decisions yourself. The Project: A Developer Tools Directory The project I built: a curated directory of free developer tools, organized by category, with ratings, descriptions, and links. Sounds simple. The requirements that made it non-trivial: a static site that could handle hundreds of tools without a database, a filtering UI that worked client-side, an admin interface for adding new tools, and deployment to a CDN with automatic builds on content changes. Tech