I run linux as well, and constantly found issues with running Chobby.
It seemed like each time i would get it working, I would run into some new bug, or it would become problematic with a new update. such as changing springsettings.cfg, and other settings that i would have defined, only to have chobby change them all again.
As such i just use weblobby since it is Linux stable, and i haven't had any issues like the ones i had with Chobby.
But it seems like Weblobby is not in favour with the devs and they wanna kill it, noticed it wont download any of the new game/engines.
Guess i might just quit ZK, and try again in a year or two and see if it has stabilized for linux by then.