Founders lose weeks to the stack debate, React or Vue, Postgres or Mongo, serverless or servers, as if the choice decides the startup’s fate. It almost never does. Users can’t see your stack; they see whether the product exists and works. Here’s what actually matters, and the boring defaults that get you to market fastest.
The rule: your stack is not your moat
Nobody ever churned because the backend was written in the “wrong” language. Products die from building the wrong thing, too slowly, for too much money. So the stack question reduces to one criterion: what lets a small team ship and change things fastest without painting itself into a corner? Every choice below follows from that.
The four choices that actually bite later
1. One language across the whole product. A TypeScript front end with a TypeScript back end means one hiring profile, shared types catching bugs at the boundary, and no context-switching tax. Polyglot architectures are a scale-stage luxury, not an MVP decision.
2. A relational database, almost always. Postgres (or SQLite at the edge) with a typed schema survives every pivot, because whatever your product becomes, it will have entities with relationships. Schemaless stores feel fast in week one and become archaeology by month six, when nobody remembers which documents have which fields.
3. Managed infrastructure over self-hosted anything. Your MVP should run on platforms where deploys are a git push and scaling is someone else’s pager, edge platforms and managed runtimes. The day you genuinely outgrow them, you’ll have the revenue to afford the migration, which is exactly the problem you want.
4. Boring auth and payments. Authentication and billing are where custom code turns into security incidents and refund disputes. Use hardened building blocks and spend your novelty budget on the thing that makes your product different, we wrote about where that budget goes in our MVP cost breakdown.
The debates that don’t matter (at MVP stage)
- Which UI framework. React, Vue, Svelte, all of them ship fine products. Pick the one your builders are fastest in, the ecosystem depth of React makes it our default, not a religion.
- Microservices vs monolith. A well-structured monolith serves your first tens of thousands of users, then splits along the seams it revealed. Starting with microservices means paying distributed-systems tax before having users.
- Kubernetes anything. If this word appears in your MVP plan, someone is building their CV, not your product.
Our default stack, and why
For SaaS MVPs we default to TypeScript end to end, React on the front, a lightweight API runtime at the edge, a relational database, and managed platforms for auth, payments, and email. Not because it’s fashionable, because it’s the shortest path from idea to a product real users can pay for, with the fewest ways to lose a week to infrastructure. The same reasoning is laid out in the MVP development service.
The bottom line
Choose boring, choose one language, choose relational, choose managed. Then stop deliberating and ship, the market feedback you get in the saved weeks is worth more than any architectural elegance.
Have an idea and want a stack-and-scope read on it? The first workshop is free, you leave with a realistic plan whether or not you build with us.