D-Link, if you are listening:
If D-Link is still finalizing the "open" developer kit for installable packages, I would like to suggest that the installation directory be changed from "Nas_Prog" to a hidden directory, perhaps ".nas_prog" or inside .systemfile?
Better, yet, I would like to be able to set the destination for the packages that are installed.
I noticed that the imodule.xml files have a path hardcoded... is that setting "hard-coded" in the original packaging or is it set during the installation?