Kanbans are one way of managing projects. They're traditionally used in businesses but can also be useful for personal TODO lists or within open source or DIY projects. If you have a list of things which need to be done and want to keep track of progress then this provides a way to do that.
Forward port 80 and 443 from your internet router
The default login is username "admin" and the login password which you usually use for the web interface.
Extra users can be added from the drop down menu at the top right of the screen, under "Users management".