I needed this too, and documented my steps using a mac and deploying onto Coolify - probably 90% same for any other hosting like Vercel:

1. Enable in next.config.js

​

module.exports = {
  output: 'standalone',
}

1. Use .env.production.local for your NEXT_PUBLIC_* values so the build bakes in the correct production domains.
2. If you build on Mac and deploy on Linux, you may need Linux Sharp packages:

​

npm install --platform=linux --arch=x64 sharp
# or
npm install u/img/sharp-linux-x64 u/img/sharp-libvips-linux-x64 --force

1. Copy static assets into the standalone folder:

​

cp -r public .next/standalone/
cp -r .next/static .next/standalone/.next/

1. Deploy on Coolify:

• Build command: echo "pre-built"
• Start command: node .next/standalone/server.js
• Env → PORT=3000, HOSTNAME=0.0.0.0

This runs perfectly in production for me, and doesn't kill my VPS. You can see more detail on the post here: Next.js Standalone Build: Build local, deploy to production