This Sandstorm app uses docker to build it's package.
docker build -t mediawiki .
to build the docker imagedocker run -p 33411:33411 --dns='127.0.0.1' -i -t mediawiki /sbin/my_init -- /bin/bash
./export_docker.sh
from this directory to export the last run docker container into a folder named dockerenv
.spk dev
and spk pack
should now work like normal