I think is a good path to follow, but, the goal is that ci.comunes.org do this task automatically (now the deb is generated there) and should copy the packages to the repo. The package is manual signed with my key (see the kune deb install howto to import it), because I didn't put the necessary effort to finish all the path and configure ci.comunes.org end task.
The deb package is distributed unsigned. The APT repository and the Debian packages should be signed.
Ref:
http://blog.mycrot.ch/2011/04/26/creating-your-own-signed-apt-repository-and-debian-packages/