Electron Fiddle Gist

main.js

// Modules to control application life and create native browser window
const { app, BrowserWindow } = require('electron')
const childProcess = require('child_process')

async function createWindow () {
  childProcess.execSync('osascript -e \'tell application "Finder" to activate\'');

  // Create new window
  w = new BrowserWindow({
    type: 'panel',
    height: 800,
    width: 800,
    center: true,
    show: false
  });

  w.webContents.loadURL("https://google.com")

  await new Promise((resolve) => {
    setTimeout(() => resolve(), 3000)
  })

  w.showInactive();
  w.focus();
}

// 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.whenReady().then(() => {
  createWindow()

  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 (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') app.quit()
})

package.json

{
  "name": "horrible-pencil-pump-dycka",
  "productName": "horrible-pencil-pump-dycka",
  "description": "My Electron application description",
  "keywords": [],
  "main": "./main.js",
  "version": "1.0.0",
  "author": "felix",
  "scripts": {
    "start": "electron ."
  },
  "dependencies": {},
  "devDependencies": {
    "electron": "28.1.0"
  }
}