hictoaster/electron-serve.js

const {app, BrowserWindow} = require('electron');
const serve = require('electron-serve');

const loadURL = serve({directory: 'hen'});

let mainWindow;

(async () => {
  await app.whenReady();

  mainWindow = new BrowserWindow({
    width: 1280,
    height: 720
  });

  await loadURL(mainWindow);

  // The above is equivalent to this:
  await mainWindow.loadURL('app://-');
  // The `-` is just the required hostname
})();