See https://wiki.alpinelinux.org/wiki/Creating_an_Alpine_package
apk add alpine-sdk sudo vim git clone https://gitlab.alpinelinux.org/alpine/aports adduser build addgroup build abuild mkdir -p /var/cache/distfiles chmod a+w /var/cache/distfiles chgrp abuild /var/cache/distfiles chmod g+w /var/cache/distfiles su - build abuild-keygen -a -i abuild checksum abuild -r