To create alpine linux ISO with live-disk minimal desktop

curl -so ~/iso.sh https://raw.githubusercontent.com/0free/alpineLinux/edge/iso.sh && ash ~/iso.sh

To install alpine linux

curl -so ~/setup.sh https://raw.githubusercontent.com/0free/alpineLinux/edge/setup.sh && ash ~/setup.sh

Note: if you boot the created iso; then run setup from terminal