JAVASCRIPT

new nextjs project

npx create-next-app
// or
yarn create next-app

make nextjs project

npx create-next-app
# or
yarn create next-app

nextjs create project latest

npm i next@latest react@latest react-dom@latest eslint-config-next@latest
npx create-next-app@latest
yarn create next-app
pnpm create next-app

If you want to start with a TypeScript 
project you can use the --typescript flag:

npx create-next-app@latest --typescript
yarn create next-app --typescript
pnpm create next-app --typescript

best way to setup nextjs project

{
  "extends": ["next", "next/core-web-vitals", "eslint:recommended"],
  "globals": {
    "React": "readonly"
  },
  "rules": {
    "no-unused-vars": [1, { "args": "after-used", "argsIgnorePattern": "^_" }]
  }
}