rex is a terminal music player for the music library on your Plex Media Server, built to stay small and fast!
There are a few packages available of this program for various linux flavours, just select one from the releases list.
rex # sign in on first run, then open the player
rex login # sign in again and pick a server and music library
rex logout # forget the saved tokens
rex --log-level debug # more detail in ~/.local/state/rex/rex.*.logpress ? inside the player to see all keybindings