text: const {app, BrowserWindow} = require('electron');
  const path = require('path');
  const config = require(path.join(__dirname, 'package.json'));
  
  const Compute = require('@google-cloud/compute');
  const compute = new Compute();
  const zone = compute.zone('asia-southeast1-c');
  const vm = zone.vm('vpn');
  
  // Keep a global reference of the window object, if you don't, the window will
  // be closed automatically when the JavaScript object is garbage collected.
  let win;
  
  function createWindow () {
    // Create the browser window.
    win = new BrowserWindow({
      width: 800,
      height: 600,
      // backgroundColor: 'lightgray',
      title: config.productName,
      // show: false,
      webPreferences: {
        // nodeIntegration: false,
        // contextIsolation: true,
        defaultEncoding: 'UTF-8',
      }
    });
    // win.setMenu(null);
  
    // and load the index.html of the app.
    win.loadFile('views/index.html');
  
    // Emitted when the window is closed.
    win.on('closed', function() {
      // Dereference the window object, usually you would store windows
      // in an array if your app supports multi windows, this is the time
      // when you should delete the corresponding element.
      win = null;
    });
  };
  
  // This method will be called when Electron has finished
  // initialization and is ready to create browser windows.
  // Some APIs can only be used after this event occurs.
  app.on('ready', createWindow);
  
  // Quit when all windows are closed.
  app.on('window-all-closed', function () {
    // On macOS it is common for applications and their menu bar
    // to stay active until the user quits explicitly with Cmd + Q
    if (process.platform !== 'darwin') {
      app.quit();
    }
  });
  
  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (win === null) {
      createWindow();
    }
  });
  
  // In this file you can include the rest of your app's specific main process
  // code. You can also put them in separate files and require them here.