Package: bspwm Version: 0.9.9-3 Bspwm installation puts the bspc completion file in /usr/share/zsh/site-functions, the zsh default, but debian zsh overiddes this, using /usr/share/zsh/vendor-completions instead. (See bottom of /usr/share/doc/zsh/README.Debian).
The result is: zsh doesn't see the file, and bspc completion doesn't work. To change the _bspc file location, just put this in debian/rules: export ZSHCPL=/usr/share/zsh/vendor-completions Cheers, -- David