How to choose a tech stack for an MVP in 2026?

Stop optimizing for the wrong things. Most founders pick a stack based on what their last engineer used, or what is trending on Hacker News this week. Neither is the right input. Here is what actually matters when you are picking a stack for an MVP. First, what can you hire for? If you cannot hire for it, you are locked into the original builder forever. React, Next.js, TypeScript, Node, and Postgres are the safest hire pool in 2026. Anything more exotic and you are paying a premium to hire or stuck with whoever originally wrote it. Second, what can you deploy without thinking? Vercel for Next.js. Fly.io or Render for everything else. AWS direct is overkill for an MVP. You will spend more time on infrastructure than features. If your stack requires Kubernetes to ship, you picked wrong. Third, what does the boring path look like for the next 18 months? If you outgrow it, can you keep using it without rewriting? Postgres can take you from zero to a million users without a database change. MongoDB cannot, and you will feel it at scale. Pick the one you do not have to leave. Fourth, for AI features specifically: pick a wrapper, not a model. Vercel AI SDK, LangChain, or the OpenAI and Anthropic SDKs directly. Do not fall for "we built our own model serving infrastructure". You are not Google. Use the closest provider and move on. Our default stack in 2026 for a typical MVP: Next.js (App Router) with TypeScript on Vercel. Postgres (Supabase if you want auth bundled, Neon if you want serverless). Auth via Clerk if you have budget, NextAuth if you do not. Payments through Stripe, always. Email through Resend. Background jobs on Inngest or QStash. AI through the Vercel AI SDK with OpenAI or Anthropic as the provider. If your MVP is mobile-first: React Native plus Expo, same Postgres backend, EAS for builds. Do not go native unless you are shipping something that needs ARKit or specific platform APIs. What we avoid for MVPs in 2026: Microservices for a one-engineer build are overkill and slow everything down. GraphQL when you have three endpoints is yak-shaving. REST is fine, ship faster. Kubernetes is heavy. Use Fly.io or Vercel. Your own auth is a security risk. Use a service. Server-side rendering frameworks you cannot hire for: Remix is fine, Svelte is risky if you are hiring. The right stack is boring. Boring means hireable, deployable, focused on the actual product instead of yak-shaving the infrastructure. The interesting stuff should be your product, not your build tools. One more thing. If your engineer wants to use the latest "edge" framework they discovered last week, push back. You are not building for them. You are building for the next engineer who will inherit the code in 14 months. Choose the boring one. The stack does not decide whether your product succeeds. Customers do. But the wrong stack can absolutely kill a startup by making everything slower and more expensive than it needs to be. Boring wins.