Developer Ships Financial Web App Using AI as Full Product Team

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A developer launched GranaCheck, a web app that performs financial health checkups and generates personalized budget splits, by using AI tools across every stage of development. Rather than coding from scratch, the developer assigned AI the roles of product manager, UI designer, frontend developer, and QA tester. The app was built using Vue 3 and Tailwind CSS, with AI generating modular components one at a time based on a predefined design system. Layout bugs were resolved by feeding screenshots back to the AI and requesting targeted CSS fixes. The developer's own role was limited to product architecture and decision-making, allowing the MVP to reach production without the project stalling.

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