From scratch
The deploy GLARBS scripts is not complete yet.
From a Gento base install
Make sure to also update all your files in /etc/portage/ accordingly, see deploy GLARBS /etc/portage for an example.
Emerge app-portage/layman.
root #
emerge --ask --verbose app-portage/layman
Emerge the portage set Programs selected by Luke.
root #
emerge --ask --verbose @glarbs-progs
Emerge the portage set Programs needed specifically by Gentoo, according to your configuration. Comment out the programs you don´t need.
root #
emerge --ask --verbose @glarbs-progs-extra