Streaming an emulator

I'm having trouble using an emulator on Moonlight.

I'm using CEMU to emulate a game on my host PC and streaming to my smart TV. I've added CEMU to Sunshine and can launch it on the TV. The problem is that neither the bluetooth controller nor the TV remote can be used to launch the game in CEMU once it opens. When I launch CEMU from the client it shows the whole desktop of the host PC with CEMU open. To get the game to launch, I have to go to the host PC and launch it (which I think partially defeats the purpose). I tried remoting into the host PC with teamviewer and I was able to launch the game and play but when the teamviewer session is ended it does the usual teamviewer popup saying "This session was sponsored" which becomes the active window making it so I'm not able to play the game anymore. I did go to the host PC, close that popup, and make the game the active window again, but when I got back to the TV the game no longer responds to the controller.

Is there a way to launch games in an emulator from the client without having to interact with the host? I haven't been able to find any documentation that solves this problem.