Background: The founder and creator of the OTRS ticket system build an open source Zendesk alternative with some pretty neat features which can be found here: http://days.zammad.org/
Can't wait to read your feedback and what you think.
Great! I'll give it a go when the Vagrant box is ready. At the moment I'm providing support for a small product via email and it's getting old. I'm keen to switch to something better.