Once downloaded, you need to activate the plugin, start Quod Libet and go in
the Music/Plugins Menu, tick Audioscrobbler Submission and configure the
right panel, selecting Libre.FM and filling your username and password.
Notes: If Quod Libet was already running, you might need to click on refresh
in the plugins menu in order to see the latest version of the Audioscrobbler
Submission plugin. If you have a problem, please double check you username
and password and make sure there are no warnings for this plugin when you
click on the Show Errors button of the plugins panel.