code: function prepareServe() {
  
    if (webpackServer) {
      return bindServe();
    } else {
      return new Promise((resolve, reject) => {
        portfinder.getPortPromise()
          .then(writeConfigServe)
          .then(bindServe)
          .then(resolve)
          .catch(err => reject(err));
      });
    }
  }
docs: Spawns `skyux serve` and resolves once webpack is ready.