I just set up Serviio today using the method in the wiki. There was no reference to a repo!
I'd rather use a package manager to reinstall instead. I'll remove the extracted tar files and reinstall with apt-get. This way I can update it more easily.
root@nix-01:/etc/apt/sources.list.d# cat debian.i-matrixx.list deb http://debian.i-matrixx.de serviio main deb-src http://debian.i-matrixx.de serviio main