“Should we use Next.js or Astro? PostgreSQL or MongoDB? Kubernetes or just a VPS?” We hear these questions on every new engagement. And the answer is almost always the same: it depends on three things that have nothing to do with technology.

The Three Things That Actually Matter

1. What Are You Building?

A real-time collaborative tool has different requirements than a marketing site. A fintech app with compliance needs has different requirements than an internal dashboard.

Start with the product, not the framework:

  • Read-heavy content sites → static generation wins (Astro, Next.js SSG)
  • Interactive web apps → React, Vue, or Svelte with a proper state management approach
  • Real-time features → WebSockets or server-sent events, which narrows your backend choices
  • Mobile + web → React Native or Flutter for shared code, or separate native apps if performance is critical
  • API-first products → Node.js, Go, or Python depending on your team’s strengths

The best tech stack is the one that solves your specific problem — not the one trending on Twitter.

2. Who’s Building It?

A team of three senior Go engineers shouldn’t switch to Rust because a benchmark said it’s faster. A solo founder who knows Python shouldn’t learn Elixir for their MVP.

Tech stack decisions should optimize for:

  • Existing expertise — shipping speed matters more than theoretical performance
  • Hiring pool — if you need to grow the team, choose technologies with an active talent market
  • Maintenance burden — exotic stacks require exotic talent for maintenance. Consider the long-term cost.

We’ve seen startups spend months learning a new framework they didn’t need. Meanwhile, competitors shipped with boring, well-understood tools and captured the market.

3. What’s Your Timeline?

If you need to ship in 6 weeks, you need proven tools with mature ecosystems. If you have a year, you can afford to evaluate newer options.

For MVPs and early products, our recommendation is almost always the same: use the most boring technology that solves the problem. Save the interesting architecture decisions for when you have real traffic and real constraints.

What We’ve Learned Across 47 Projects

Here’s what actually works in practice:

  • Astro for marketing sites and content-heavy pages. It’s fast, simple, and outputs zero JavaScript by default. Our own site itqanlab.com is built with Astro.
  • Next.js for interactive web applications that need SSR, API routes, and a rich component ecosystem.
  • React Native when you need iOS and Android from a single codebase without sacrificing quality.
  • PostgreSQL for almost everything. Unless you have a specific reason to use something else, Postgres is the right default.
  • Docker + VPS for deployment until you genuinely need orchestration. Kubernetes before you need it is a full-time job.

The Anti-Pattern: Resume-Driven Development

The biggest tech stack mistake isn’t choosing the wrong tool. It’s choosing a tool because it looks good on someone’s resume rather than because it solves the problem.

Signs of resume-driven development:

  • Microservices for a product with 3 API endpoints
  • Kubernetes for an app with 100 users
  • GraphQL when your data model has 4 entities
  • Event sourcing for a CRUD app

Every layer of complexity you add is a layer you have to maintain, debug, and hire for. Complexity should be earned by real requirements, not added for theoretical future scale.

Our Decision Framework

When a client asks us to recommend a tech stack, we follow this process:

  1. Define the product requirements — not technical requirements, product requirements
  2. Map constraints — team skills, timeline, budget, compliance needs
  3. Choose the simplest stack that satisfies both — and document why
  4. Plan for change — use clean architecture so the database, framework, or hosting can be swapped without rewriting business logic

The goal isn’t to pick the “best” technology. It’s to pick the right one for the job, ship, and iterate.

Stuck on a tech stack decision? Let’s talk — we’ll give you a recommendation based on your product, not our preferences.

Related: See how we approach Web & App Development and Product Strategy to make these decisions early.