vue-devtools/packages/shell-electron/app.js

// Start middleware server
require('./server')

const path = require('node:path')
const url = require('node:url')
const { app, BrowserWindow } = require('electron')

let mainWindow = null

function createWindow() {
  mainWindow = new BrowserWindow({
    width: 800,
    height: 600,
    icon: path.join(__dirname, 'icons/128.png'),
    webPreferences: {
      nodeIntegration: true,
      contextIsolation: false,
    },
  })

  mainWindow.loadURL(url.format({
    pathname: path.join(__dirname, 'app.html'),
    protocol: 'file:',
    slashes: true,
  }))

  mainWindow.on('closed', () => {
    mainWindow = null
  })
}

app.on('ready', createWindow)

app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

app.on('activate', () => {
  if (mainWindow === null) {
    createWindow()
  }
})