This is about porting the old KDE 3 based KDirstat to the latest Qt 5. KDirStat didn't use that much KDE infrastructure to begin with, and KDE seems to be more and more a moving target.
Project repo and web site with more details:
Very stable and pretty feature complete. Trying to avoid feature creep and UI overload.
See home page for (a lot) more details
This project is part of:
Hack Week 13 Hack Week 14 Hack Week 15