I have been playing a bit with vala, libgee and gtk+-3.0 and wrote a small ssh config editor.

Lately I often find the need to add/remove/edit an entry in ~/.ssh/config, so to make things easier I am writing a small GUI editor for it.
It is far from done, but it finally does something.
(load file, edit entries name/hostname and write it out again).

screenshots (on test file):

Need to add button and support editing in the keylist.