How to Deploy Your Cursor App to Production: A Practical Guide

You built something with Cursor. The code works. localhost:3000 is looking sharp. Now comes the part nobody warned you about: getting it live on the actual internet.

If you're reading this, you've probably already discovered that deployment isn't just clicking a button. The gap between 'working on my machine' and 'accessible via a URL' is wider than most tutorials suggest.

This guide covers the practical steps for deploying a Cursor-built application, whether you're running a Next.js app, a React frontend, or something else entirely. No fluff, no unnecessary complexity - just what you need to ship.

Before You Deploy: The Pre-Flight Check

Before touching any hosting platform, verify these fundamentals. Skipping this step is why most first deployments fail.

First, run your build command locally. For most JavaScript projects, that's npm run build or yarn build. If it fails here, it'll definitely fail in production. Fix any errors before proceeding.

Second, document your environment variables. Open your .env file and list every variable. You'll need to recreate these in your production environment, and missing even one can cause cryptic failures.

Third, check your database situation. If you're using a local SQLite database, you'll need a production database service. PostgreSQL on Railway or Supabase are good options. If you're already using an external database, make sure you have your production connection string ready.

Choosing Your Hosting Platform

Your choice of hosting depends on your budget, technical comfort, and scaling expectations. Here are the main options for Cursor-built apps:

Vercel is the path of least resistance for Next.js projects (which many Cursor builds are). Connect your GitHub repo, click deploy, and you're often live within minutes. The free tier is generous for development and early traction. The tradeoff is cost - once you scale past free limits, bills can grow quickly.

Railway offers more flexibility for apps that need databases, background jobs, or multiple services. It's more complex than Vercel but handles a wider range of architectures. Pricing is usage-based, which can be unpredictable.

DigitalOcean (with Coolify or similar) is the most cost-effective for apps expecting real traffic. A $6-12/month droplet can handle significant load. The tradeoff is setup complexity - you're managing more of the infrastructure yourself.

The Deployment Process: Step by Step

Assuming you're going with Vercel (the most common choice for Cursor apps), here's the actual process:

1. Push your code to GitHub if you haven't already. Vercel deploys from your repository, so it needs access to your code.

2. Create a Vercel account and connect your GitHub. The onboarding flow walks you through this.

3. Import your project. Vercel will auto-detect most settings for Next.js apps. Verify the build command and output directory match what you use locally.

4. Add your environment variables. This is in the project settings under 'Environment Variables.' Add every variable from your .env file. Double-check for typos - a wrong variable name causes silent failures.

5. Deploy. Vercel will build your app and give you a preview URL. Test thoroughly before pointing your custom domain.

6. Add your custom domain in Domain settings. You'll get instructions for updating your DNS records. This typically involves adding a CNAME or A record at your domain registrar.

Common Deployment Problems (And How to Fix Them)

'Build failed' errors: Usually means a dependency issue or missing environment variable. Check the build logs carefully - the actual error is often buried in the output.

'Page not found' after deployment: Your build output might be going to the wrong directory. Verify the 'Output Directory' setting matches your framework's actual output location.

Features work locally but not in production: Almost always an environment variable issue. Compare your local .env against what's configured in your hosting platform.

DNS not propagating: This genuinely can take up to 48 hours, though it's usually faster. Clear your browser cache and try from a different device/network to verify.

When to Ask for Help

Some deployment challenges have simple solutions that just aren't obvious if you haven't seen them before. If you've been stuck on the same issue for more than a few hours, or if the terminology in error messages doesn't make sense, that's a reasonable point to get expert help.

At Interloper Digital, we offer free Discovery Audits for early-stage founders. We'll look at your codebase, identify deployment blockers, and give you a clear path forward. Sometimes 20 minutes with someone who's done this hundreds of times saves you days of frustration.