Why do you like to use WBFS?
Dolphin use an own compressor, which reach at least the quality of WBFS, simply right click the ISO in Dolphins List:
This work not on real Wii.
Here is how to make qwbfs of demms example running on KaOS:
Download the Snapshot and extract it:
Open Konsole in the Filemanager with F4, move to the extracted Folder and run makepkg -si:
Wait until the build is finish and enter your password then.
Start it with qwbfsmanager
Please be aware, that the very most Arch PKGBUILDs are incompatible by default with KaOS, see demms links above, the IRC Channels and this forum section for more support about packaging: