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# Config Extends
This example shows how to use the extends key in `nuxt.config.ts`.
This example shows how to use the `extends` key in nuxt.config.ts to use the `base/` directory as a base Nuxt application, and use its components, composables or config and override them if necessary.
::sandbox{repo="nuxt/nuxt" branch="main" dir="examples/advanced/config-extends" file="nuxt.config.ts"}
::
