this is a great tool and service. i've successfully built a customized image for my wrt32x.
i ran into a problem building for ar71/ mr16: i tried to add wpad-mash and take away wpad-mini. the build failed with error wpad-mini asking for modules that wpad-mesh had alrady required. this message was generated in the build process whether i put wpad-mesh at the top or bottom oof the list, and whether or not i removed wpad-mini fmr the list. it seems wpad-mini is in the build list no matter what packages are in the package window