It looks like we can bypass all the apk transferring to Fire.
On FireTV
Install Downloader - then:
http://m.aptoide.com/installer-aptoide-tv
open in browser - install
Use Aptoide-TV to install stuff
(This all had it's own mouse toggle function.)
If you do not see this, you have spelled it wrong
I just put it on an original Fire Stick I've never used. Installed Terrarium and it works flawlessly. The interface is a little slower than what I'm accustomed to with the Shield but hey, it works. I wonder how much crap I can install on a Fire Stick without killing it.
To install Private Internet Access open Downloader and enter http://bit.ly/piafire.
