code: async function packaging () {
    await ngPackagr.ngPackage({project: path.join(config.libPath, 'ng-package.json')})
      .then((res) => {
        console.info('done packaging'.green)
      })
      .catch((err) => {
        console.error('Build failed: '.red, err)
        process.exit(1)
      })
    const {stdout, stderr} = await exec('npm pack', {cwd: path.join(config.libPath, 'dist')})
    console.info('done npm pack'.green)
    return {stdout, stderr}
  }
docs: build scripts =============================================================================