Wikipedia says, “Wajig is a simplified wrapper to Debian’s package management system dpkg/APT. Wajig provides the functionality of apt-get, dpkg, dpkg-deb, apt-cache and other tools. These tools launch as a subprocess. Wajig also provides extra functionality beyond that of the stock apt and dpkg tools.”.
It seems best documented at http://wajig.togaware.com, where there is a survival page, and alternatively a man page. I was hoping for a graphic interface, known as gnome jig, or maybe gjig, but I can’t get this to work on my evolution build, here is the man page for gjig to prove it works