Yes, this particular device uses USB power so once the PC is powered up it receives power and is on…
Also I noticed that when I try to install LMS it looks for the ARM version. Don’t know if that was the problem but it would not install via the Dietpi GUI. I had to uninstall LMS via the GUI and install it manually.
First install
sudo apt-get install libio-socket-ssl-perl
Then do a wget from the Nightly build page for my device [x86_64], from there a sudo dpkg -i … and everything was fine.