Serverless
Serverless is a cloud computing model where you write functions and the cloud provider handles all server management — scaling, infrastructure, and availability. You don't manage servers; you deploy code, and it runs on demand. For vibe coders, serverless is how most modern apps deploy — platforms like Vercel and Netlify are serverless under the hood.
Example
Your API route on Vercel is serverless. When a user hits /api/generate, Vercel spins up a function to handle the request, runs your code, returns the response, and shuts down. You pay only for the time your code actually runs.
Serverless doesn't mean "no servers" — it means you don't think about them. Someone else manages the infrastructure while you focus on code.
Serverless vs Traditional Hosting
| Traditional Server | Serverless |
|---|---|
| Always running | Runs on demand |
| You manage infrastructure | Provider manages everything |
| Fixed monthly cost | Pay per execution |
| You handle scaling | Auto-scales automatically |
| Full control | Limited control |
How Serverless Works
- You deploy a function — A piece of code that handles a request
- A request arrives — User hits your endpoint
- Cloud spins up your function — Milliseconds to start
- Function runs and responds — Processes the request
- Function shuts down — No idle resources
Serverless Platforms for Vibe Coders
| Platform | Best For |
|---|---|
| Vercel | Next.js apps, API routes |
| Netlify | Static sites, edge functions |
| AWS Lambda | Custom serverless functions |
| Cloudflare Workers | Edge computing, fast globally |
Serverless Limitations
- Cold starts — First request after idle is slower
- Execution time limits — Functions can't run forever (usually 10-60 seconds)
- No persistent state — Functions don't remember between calls
- Vendor lock-in — Moving between providers takes work
When to Use Serverless
Good fit: API routes, webhooks, scheduled tasks, form handling Bad fit: Long-running processes, WebSocket connections, AI agents that need persistence
Most vibe coders start serverless (Vercel) and add a VPS only when they need always-on services.
Emergent — An agentic vibe-coding platform that builds production-ready apps