metro.config.js

const {getDefaultConfig, mergeConfig} = require('@react-native/metro-config');
const path = require('path');
const blacklist = require('metro-config/src/defaults/exclusionList');
const escape = require('escape-string-regexp');
const pak = require('../package.json');

const root = path.resolve(__dirname, '..');
const modules = Object.keys({...pak.peerDependencies});

const config = {
  watchFolders: [root],

  // We need to make sure that only one version is loaded for peerDependencies
  // So we blacklist them at the root, and alias them to the versions in example's node_modules
  resolver: {
    blacklistRE: blacklist(
      modules.map(
        m => new RegExp(`^${escape(path.join(root, 'node_modules', m))}\\/.*$`),
      ),
    ),
    extraNodeModules: {
      ...modules.reduce((acc, name) => {
        acc[name] = path.join(__dirname, 'node_modules', name);
        return acc;
      }, {}),
    },
  },

  transformer: {
    getTransformOptions: async () => ({
      transform: {
        experimentalImportSupport: false,
        inlineRequires: true,
      },
    }),
  },
};

module.exports = mergeConfig(getDefaultConfig(__dirname), config);