title: Send android apk to multiple devices
body: <p>I have 150 android devices (all same brand and model) in a school environment (each student has one). I would like to be able to install one or more apps to all of them with no or minimal actions from the students. </p>
  
  <p>The devices have google play installed, but most of the students don't have google accounts.</p>
  
  <p>Something like a private repo comes to mind.</p>
  
  <p>Any suggestions?</p>