With the explosions of frameworks lately, it's refreshing to see that people are still working on CMSs. It's interesting, though, why they made their own templating language rather than use an existing one (twig, for example, is used by OctoberCMS and there's even a Wordpress plugin.)

Also in terms of clients, it'd probably be useful to have a wysiwyg editor or even just editable sub-fields that you can set for each page. Right now there's no clear-cut advantage for using this over, say, a static-page generator (except for the ORM, I guess).