InitialSetup

Install to hard drive

# login as root
setup-alpine

See the alpinelinux wiki

Without installing

If you just want to run from RAM without installing,

# As root
echo myhostname > /etc/hostname
hostname -F /etc/hostname
apk add dhcpcd
dhcpcd

edit /etc/apk/repositories

http://dl-cdn.alpinelinux.org/alpine/v3.17/main
http://dl-cdn.alpinelinux.org/alpine/v3.17/community

then I install

apk add vim
apk add tmux
apk add curl

After this, only 48MB is used. Though note that aplinelinux runs out of a tmpfs so these are lost when rebooting.