Adding aliases for directories in Webpack

webpack.config.js

module.exports = {
  module: {
    rules: [
      cssRule, // can set the loaders to a constant
      jsxRule, // same as above
    ],
  },
  resolve: {
    alias: {
      // use the relative path to the aliased directory, starting from .storybook
      someDir: path.resolve(__dirname, 'path/to/dir/rel/to/.storybook')
    },
  },
};