metro config for updating a forked library

metro.config.js

const { getDefaultConfig } = require('expo/metro-config')
const path = require('path')

PATH = './local/path/to/forked/library'


module.exports = (async () => {
  const {
    resolver: { sourceExts, assetExts },
  } = await getDefaultConfig(__dirname)
  return {
    // ... other config
    
    watchFolders: [path.resolve(__dirname, PATH)],
    resolver: {
    // ... other resolver config
    
    // Installs library from path instead of yarn / npm installed version
      extraNodeModules: new Proxy(
        {},
        {
          get: (target, name) => {
            if (target.hasOwnProperty(name)) {
              return target[name]
            }
            return path.join(process.cwd(), `node_modules/${name}`)
          },
        }
      ),
    },
  }
})()