```ts
// .storybook/main.ts

// Imports the Storybook's configuration API
import type { StorybookConfig } from '@storybook/core-common';

const config: StorybookConfig = {
  stories: ['../src/**/*.stories.mdx', '../src/**/*.stories.@(js|jsx|ts|tsx)'],
  staticDirs: ['../public'],
  addons: [
    '@storybook/addon-links',
    '@storybook/addon-essentials',
    '@storybook/preset-create-react-app',
    '@storybook/addon-interactions',
  ],
  typescript: {
    check: false,
    checkOptions: {},
    reactDocgen: 'react-docgen-typescript',
    reactDocgenTypescriptOptions: {
      shouldExtractLiteralValuesFromEnum: true,
      propFilter: (prop) => (prop.parent ? !/node_modules/.test(prop.parent.fileName) : true),
    },
  },
  framework: '@storybook/react',
  core: {
    builder: 'webpack4',
  },
  features: {
    postcss: false,
  },
  refs: {
    'design-system': {
      title: 'Storybook Design System',
      url: 'https://5ccbc373887ca40020446347-yldsqjoxzb.chromatic.com',
    },
  },
};
module.exports = config;
```