title: Fake/mock Google Play Services
body: <p>I have CyanogenMod installed on an LG2 without Gapps. I only use open-source software — except the Slack app, which I restored from a backup</p>
  
  <p>The Slack app works perfectly fine, but always asks me to install "Google Play Services". I just ignore this and it works.</p>
  
  <p>Would it be possible to mock/fake the Google Play API somehow, so that whenever Slack asks for "Are the Google Play Services installed" the fake API would return <code>true</code>?</p>
  
  <p>I am not an Android Developer - I know Java and Linux so becoming one should be possible to solve this little problem.</p>