# Lifecycle Hooks

Nuxt provides a powerful hooking system to expand almost every aspect using hooks powered by [unjs/hookable](https://github.com/unjs/hookable).

## Nuxt Hooks (build time)

This hooks are available for [Nuxt Modules](/guide/going-further/modules) and build context.

### Usage with `nuxt.config`

```js [nuxt.config]
export default defineNuxtConfig({
  hooks: {
    'close': () => { }
  }
})
```

### Usage with Nuxt Modules

```js
import { defineNuxtModule } from '@nuxt/kit'

export default defineNuxtModule({
  setup (options, nuxt) {
    nuxt.hook('close', async () => { })
  })
})
```

## App Hooks (runtime)

App hooks can be mainly used by [Nuxt Plugins](/guide/directory-structure/plugins) to hook into rendering lifecycle but could also be used in Vue composables.

### Usage with Plugins

```js [plugins/test.ts]
export defineNuxtPlugin(nuxtApp) {
  nuxtApp.hook('page:start', () => { })
}
```

::alert{icon=👉}
Learn more about  [available lifecycle hooks](/api/advanced/hooks)
::