More information on the OpenGroupware.org Gentoo port can be found in
the
HOWTO: OpenGroupware.org with OpenLDAP.
This howto contains instructions on how to setup OGo on a Gentoo system,
including PostgreSQL configuration, LDAP and IMAP4 configuration.
An OpenGroupware.org Gentoo ebuild is available in the
Gentoo Bugzilla
as port #24247.