Actually since you guys made it official that steam workshop would not be an option, I've been waiting for a builtin mod manager.
I'm playing on mac, and although we have a lot of great independent mod managers, they always lack native mac support and installing them could be a real pain in the ass. So I hope you guys can consider this advice and maybe put it in your to-do list.
and BTW, GREAT game, keep up the good work.