storybook/docs/_snippets/main-config-swc-jsx-transform.md

export default {
  framework: {
    name: '@storybook/your-framework',
    options: {},
  },
  swc: (config, options) => ({
    jsc: {
      transform: {
        react: {
          runtime: 'automatic',
        },
      },
    },
  }),
};

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

const config: StorybookConfig = {
  framework: {
    name: '@storybook/your-framework',
    options: {},
  },
  swc: (config, options) => ({
    jsc: {
      transform: {
        react: {
          runtime: 'automatic',
        },
      },
    },
  }),
};

export default config;