sorry. Maybe it is wrong post of me... but when u use wm with tiling like awesome or xmonad why do u use ZKL?
Maybe I can suggest u flobby ( https://github.com/cleanrock/flobby
which would fit in your minimal style. It supports engine profiles and much more-
Btw. flobby available as .deb for ubuntu derivates and debian...
if u need assistance for flobby write me or pm me. :-)