---
title: 'webpackFinal'
sidebar:
  order: 23
  title: webpackFinal
---

Parent: [main.js|ts configuration](./main-config.mdx)

Type: `async (config: Config, options: WebpackOptions) => Config`

Customize Storybook's Webpack setup when using the [webpack builder](../../builders/webpack.mdx).

{/* prettier-ignore-start */}

<CodeSnippets path="main-config-webpack-final.md" />

{/* prettier-ignore-end */}

## `Options`

Type: `{ configType?: 'DEVELOPMENT' | 'PRODUCTION' }`

There are other options that are difficult to document here. Please introspect the type definition for more information.