storybook/docs/_snippets/main-config-indexers.md

export default {
  // Replace your-framework with the framework you are using (e.g., react-webpack5, vue3-vite)
  framework: '@storybook/your-framework',
  stories: [
    '../src/**/*.mdx',
    '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)',
    // 👇 Make sure files to index are included in `stories`
    '../src/**/*.custom-stories.@(js|jsx|ts|tsx)',
  ],
  experimental_indexers: async (existingIndexers) => {
    const customIndexer = {
      test: /\.custom-stories\.[tj]sx?$/,
      createIndex: async (fileName) => {
        // See API and examples below...
      },
    };
    return [...existingIndexers, customIndexer];
  },
};

// Replace your-framework with the framework you are using (e.g., react-webpack5, vue3-vite)
import type { StorybookConfig } from '@storybook/your-framework';

const config: StorybookConfig = {
  framework: '@storybook/your-framework',
  stories: [
    '../src/**/*.mdx',
    '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)',
    // 👇 Make sure files to index are included in `stories`
    '../src/**/*.custom-stories.@(js|jsx|ts|tsx)',
  ],
  experimental_indexers: async (existingIndexers) => {
    const customIndexer = {
      test: /\.custom-stories\.[tj]sx?$/,
      createIndex: async (fileName) => {
        // See API and examples below...
      },
    };
    return [...existingIndexers, customIndexer];
  },
};

export default config;

// Replace your-framework with the framework you are using (e.g., react-webpack5, vue3-vite)
import type { StorybookConfig } from '@storybook/your-framework';

const config: StorybookConfig = {
  framework: '@storybook/your-framework',
  stories: [
    '../src/**/*.mdx',
    '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)',
    // 👇 Make sure files to index are included in `stories`
    '../src/**/*.custom-stories.@(js|jsx|ts|tsx)',
  ],
  experimental_indexers: async (existingIndexers) => {
    const customIndexer = {
      test: /\.custom-stories\.[tj]sx?$/,
      createIndex: async (fileName) => {
        // See API and examples below...
      },
    };
    return [...existingIndexers, customIndexer];
  },
};

export default config;