Making a new post here to bring attention:

nzb360 can now be installed on a non-rooted Fire TV through the APK. The only issue is that you cannot highlight the "add" shows for Radarr/Sonarr (or any GUI component in the upper right hand corner). I understand the app was built for touchscreen but it would be amazing to utilize nzb360 on Fire TV/kodi/plex setups!

Perhaps a second GUI setting to move some of the components around to make it easier to navigate with a remote?