Building an MVP in 3 Weeks: A SaaS Prototype Case Study
A fintech founder came to us with a problem. They had a clear vision for a SaaS product, a waiting list of beta users, and zero code. They needed a working prototype in under a month to validate the concept and raise their seed round.
Week 1: Scope and Architecture
We started with a single day of whiteboarding. No slides, no decks — just a shared Figma file and honest conversation. What's the core feature? What can wait? What's the fastest path to an MVP users can click through?
By day two, we had a clear scope: authentication, a dashboard with key metrics, a core workflow for the main feature, and a settings page. Everything else went on the "later" list. Most things on that list never needed to be built.
Week 2: Design and Frontend
We designed in the browser, not in Figma. This is critical for speed. A static mockup looks different from a working interface. By designing directly with code, we caught UX issues early and avoided the handoff overhead that kills most agency projects.
The frontend was built with Next.js and Tailwind CSS — the same stack we use for everything at Meteoric. Consistent tooling means faster iteration, fewer bugs, and easier maintenance.
Week 3: Backend and Integration
We used Supabase for the backend — authentication, database, and API all in one. The beauty of Supabase is that it handles 80% of what a startup needs out of the box, so we could focus on the 20% that made the product unique.
The Result
In 21 days, the founder had a working prototype they could show to investors and beta users. The product validated with 200+ beta signups, the seed round closed, and the full build started immediately after. Three weeks of focused work saved months of uncertainty. This project was built using our default tech stack. For a deeper look at the backend decisions, read our MongoDB billing schema guide.
