title: Customize NSIS installer with Electron-builder
body: <p>I want to customize NSIS script - e.g. remove <strong>Finish Page</strong> and run app immediately after install (assisted installer is used).</p>
  
  <p>I use modifying scrpt: <code>include: build/installer.nsh</code>. </p>
  
  <p>It opens <em>myApp</em> after install but <strong>Finish</strong> page is still there.</p>
  
  <pre><code>!include MUI2.nsh
  
  !macro customInstall
    ExecWait '"$INSTDIR\myapp.exe" /sw'
  !macroend
  </code></pre>
  
  <p>I mean I don't want to show the last page <strong>Completing myApp Setup</strong> as shown in gif.</p>
  
  <p><a href="https://i.stack.imgur.com/yDiWz.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yDiWz.gif" alt="install process"></a></p>
  
  <p>Any help appreciated.</p>