Node.js

Node.js is everywhere in vibe coding — even if you never interact with it directly. It's the invisible engine running your dev server, installing packages, and powering the backend of your apps.

What Node.js Does

JavaScript was originally browser-only. Node.js broke it free:

Where You'll Encounter Node.js

As a vibe coder, Node.js shows up in several places:

• Dev server — npm run dev or bun dev runs on Node.js
• Package management — npm and npx are Node.js tools
• API routes — Your Next.js API endpoints run on Node.js
• Build process — Compiling and bundling your app
• Scripts — Database migrations, data seeding, automation

Node.js vs Bun vs Deno

Node.js has newer alternatives that are gaining traction:

AI coding tools typically generate Node.js-compatible code. Bun can run most Node.js code as a drop-in replacement with better performance.

Do You Need to Install Node.js?

Usually yes — it's a prerequisite for most web development:

1. Install Node.js — Download from nodejs.org or use a version manager like nvm
2. Verify — Run node -v in your terminal
3. npm comes included — Node's package manager installs automatically
4. Alternative: use Bun — curl -fsSL https://bun.sh/install | bash for a faster runtime