A Fedora 18 repo should also be available soon. (I'm running f18, the repo just isn't live yet).
Also attached are some systemd service files. Simply copy them into /lib/sytemd/system, copy koha.env into /etc/koha and then enable them using
systemctl enable kohazebra.service
systemctl enable kohaopac.service
systemctl enable kohaopac.service
As for plack - WOW! This stuff is amazing. I've made some modifications to the psgi files so that they run using a normal installation from source, and also so that they redirect from an empty URL to the main opac/intranet page. I've attached the psgi files here (install them in /usr/share/koha/psgi ) if anyone is interested!