webpack.config.js

// Config code borrowed from react-native-tab-view
const path = require("path");
const createExpoWebpackConfigAsync = require("@expo/webpack-config");
const { resolver } = require("./metro.config");

const root = path.resolve(__dirname, "..");
const node_modules = path.join(__dirname, "node_modules");
const packageName = require('../package.json').name;

module.exports = async function (env, argv) {
  const config = await createExpoWebpackConfigAsync(env, argv);

  config.module.rules.push({
    test: /\.(js|ts|tsx)$/,
    include: path.resolve(root, "src"),
    use: "babel-loader",
  });

  // We need to make sure that only one version is loaded for peerDependencies
  // So we alias them to the versions in example's node_modules
  Object.assign(config.resolve.alias, {
    ...resolver.extraNodeModules,
    "react-native-web": path.join(node_modules, "react-native-web"),
    [packageName]: path.resolve('../src/index'),
  });

  return config;
};