Need help installing software using script

[jmak]

Hello,

I am a beginner sabayon user and I still dont know how to install software using script.
I want to install a plasmoid docker. The author of the software provided a script for gentoo based distros. This is the script:

# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI="2"

inherit kde4-base

CONTENT_NUMBER="99737"

DESCRIPTION="Plasmoid for fancy representing your tasks and launchers. Inspired by Peachy Dock, Avant Window Navigator and other MacOS X like docks."
HOMEPAGE="http://www.kde-look.org/content/show.php/Fancy+Tasks?content=99737"
LICENSE="GPL"

KEYWORDS="~amd64 ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd"
SLOT="4.2"

SRC_URI="http://www.kde-look.org/CONTENT/content-files/${CONTENT_NUMBER}-fancytasks-${PV}.tar.bz2"

DEPEND="kde-base/kdelibs:${SLOT}"

S="${WORKDIR}/fancytasks-${PV}"

My question; what to do with this script. How to go about installing the software.
I've already read the gentoo documentation but found no info about this installation method.

Thanks a lot,
jmak

[kodiakmax]

It's in the wiki

HOWTO: Example of Installing 3rd Party Ebuilds

[jmak]

Thanks for the link. Now, I am reading the tutorial.