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mkdir cms
cd cms
npm init -y
npm install next react react-dom

Update package.json file

"scripts": {
  "dev": "next dev",
  "build": "next build",
  "start": "next start",
  "lint": "next lint"
}

Create pages folder

mkdir pages
cd pages
touch pages/index.js

Write content for home page index.js

// index.js
export default function () {
  return <div>Welcome to Next.js!</div>;
}

Run the project

npm run dev

Now visit http://localhost:3000 to see your nextjs app running.