(Sorry, writing it down is the best way I know to remember it.)
I’ve been using Debian for some years now. While the alternatives like Ubuntu seem easier to a lot of people, I can’t help but prefer Debian for its idealistic views on software, and freedom ; which sometimes beat practicality to the ground, but let us dream.
So, if you’ve been using Debian’s squeeze (aka as testing for now), you may have noticed that the xlockmore package is not available (for very good reasons IIRC, do your googling-homework). However the software is present in the unstable branch, and you can easily build the package from unstable for your testing playground. Note that this method is unsafe, as you won’t get any automatic update of the “custom” package…
First, grab the source tarball from unstable.
Un-compress the archive:
tar zxvf xlockmore_5.31-1.tar.gz
Build the package:
cd xlockmore_5.31-1 dpkg-buildpackage # This should take a little time
If the dpkg-buildpackage command complains about missing build dependencies, just install them and restart the dpkg-buildpackage command after (did I even need to mention that?).
There, you have your package:
cd .. ls xlock*.deb # if you on amd64, you should get: # xlockmore_5.31-1_amd64.deb xlockmore-gl_5.31-1_amd64.deb
Install one, or both of them. For example on amd64…:
sudo dpkg -i xlockmore_5.31-1_amd64.deb