If you forget to create the root layout, Next.js will automatically create this file when running the development server with next dev.
You can optionally use a src folder in the root of your project to separate your application's code from configuration files.
Create a public folder at the root of your project to store static assets such as images, fonts, etc. Files inside public can then be referenced by your code starting from the base URL (/).

You can then reference these assets using the root path (/). For example, public/profile.png can be referenced as /profile.png:Next.js comes with built-in TypeScript support. To add TypeScript to your project, rename a file to .ts / .tsx and run next dev. Next.js will automatically install the necessary dependencies and add a tsconfig.json file with the recommended config options.Next.js includes a custom TypeScript plugin and type checker, which VSCode and other code editors can use for advanced type-checking and auto-completion.