This overlay contains curated unmodified Gentoo packages that are part of the CoreOS build and are exact copies of upstream Gentoo packages.

Use src/scripts/update_ebuilds to fetch the latest copy from Gentoo:

cd ~/trunk/src/scripts
repo start update-foo ../third-party/portage-stable
./update_ebuilds --commit app-fun/foo

Note: update_ebuilds can fetch from either Gentoo's anonymous CVS or Rsync services, both of which will ban users making excessive requests. If you have a lot of related packages to update or just aren't quite sure what you are getting into please pull down a local copy to work from:

rsync -rtlv rsync://rsync.gentoo.org/gentoo-portage ~/
./update_ebuilds --commit --portage ~/gentoo-portage app-fun/foo

Licensing information can be found in the respective files, so consult them directly. Most ebuilds are licensed under the GPL version 2.

Upstream Gentoo sources: http://sources.gentoo.org/gentoo-x86/