It currently doesn't work on linux. Hopefully soon the final WPF elements will be removed and it will run on linux using mono.
Springlobby is sufficient for everything though, even if it is not ideal. The parts of zklobby for browsing replays, PlanetWars, etc, are actually just a web browser.
(Unrelated, sorry for recommending the nvidia binary blobs. I had heard before that cinnamon didn't always work with it so I should have known better. ;_;)