I got my answer in a big way on the Kodi forums. Thank you sir for the suggestion!!
I have done a number of Kodi installs in various environments, but this latest try using LibreElec on a Raspberry Pi 4 8gb has been the most rewarding. Now with my ability to shell into the client, pull the user database, send commands using sockets, and being able to explore all that both OS and Kodi have to offer, I FINALLY have the media client setup of my dreams become a reality. And because of this, my nVidia Shield is going to be collecting a whole lot of dust moving forward. lol
Thanks again!