If it's supposed to make packages for random unpacked software i'm kind of lost. It could be I just really suck at reading Ruby (don't know the language) but I couldn't find any code that looks at autoconf/automake files or standard open-source developer conventions to generate a package from scratch using the values intended by the developer. I've written two very crappy tools that do this to automatically generate packages (mainly for Solaris, RedHat and Slackware).

To answer the guy above's question: you need to learn how to make basic Makefiles and after that it's all package-manager-specific stuff, which you can use something like Alien (or fpm) to convert to whatever format you wish.