title: Is there a way to build OpenWrt firmware containing my custom python package and auto starting script?
body: <p>I have a shell script that installs the software on the running device(Linkit Smart 7688 Duo with OpenWrt on board).
  It contains my custom python package and a couple of different files.
  I have managed to build OpenWrt for that board from source but I have no knowledge on how to build my custom script into the image. 
  For example, I want my installation script to run at first bootup of the board. 
  In my script I define a new /etc/init.d/ Service that runs at startup.</p>
  
  <p>Can someone help me / provide with a tutorial on how to achieve what I wrote above? 
  I looked for tutorials but none of them seem to cover my topic of interest.</p>