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tags: ["webdev", "architecture", "startups", "nextjs"]

The Hidden Cost of Monolithic Frontends — Why I Switched to Component-First Architecture

Most startup advice assumes you have a team. "Hire a backend engineer." "Get a DevOps person."

But what if you're one person shipping multiple products? You need a stack that compounds — where every hour of learning pays dividends across all products.

The Solo Developer's Stack

1. Next.js — 4 Jobs in 1

Collapses frontend, backend, SSR, and deployment into one codebase. One npm run dev, one deploy button. Every bug fix applies to all products.

2. PostgreSQL + Supabase — Relational is Multi-Product Data

Row-Level Security means Postgres enforces tenant isolation, not your code:

CREATE POLICY "User isolation" ON user_data
  FOR ALL USING (auth.uid() = user_id);

One line = hundreds of lines of auth middleware eliminated.

3. NextAuth.js — Shared Auth Across Products

OAuth, magic links, sessions, JWT rotation. Shared auth service → sign up once, access everything.

4. Lemon Squeezy — Merchant of Record

They handle global tax compliance. You just get paid. Difference between launching in 3 countries vs. everywhere.

5. Vercel + GitHub Actions — 45-Second Deploys

git push → tests → preview → production → CDN. 8 products, 3 CI/CD files.

What I Avoid

• Docker/K8s — Overkill for <1000 users
• Microservices — Coordination cost kills solo teams
• Self-hosted everything — Time is your scarcest resource

The Lesson

Every tech choice is a bet on your future time. Choose tools that pay off across ALL products. The best stack gets out of your way.

What's in your solo dev stack? Let me know in the comments.