SmartTube is on AndroidTV

Kodi can be installed through the play store, you can transfer files over smb and ftp and move the apk using it.

You're welcome.

Excuses:

I use a Roku or Roku TV

Don't, buy a $25 Android TV box from walmart.

I use AppleTV

Don't, buy a $25 Android TV box from walmart.

FTP? SMB? Apk? What are these, words?!

These terms can be searched for and learned about.

Why not just use Kodi?

You're ahead of the game, find a plugin pack and enjoy