zoneminder-1.30.4.ebuild:DESCRIPTION="Capture, analyse, record and monitor any cameras attached to your system" Capture cameras? Analyse cameras? Need I go on? The website describes it as "A full-featured, open source, state-of-the-art video surveillance software system".
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c66a9574205fcefe13c0b13a778af774f2703a0b