title: Wifi file transfer between Linux PC and Android
body: <p>Im thinking about my next project and I just wanted to know, what could be the simplest solution to implement.
  I have a linux PC, that generates files (text files, images) and everytime the file is created, the PC should send it to my Android device via Wifi.
  What could be the simplest solution? FTP? SSH?</p>
  
  <p>I also want my custom Android app, so dont recommend me any kind of existing Android app, please.</p>