I'm packaging software at work and the scope has increased to have Lucid-based as well as Karmic-based versions. Right now I just build inside a Karmic vm using git-buildpackage calling debuild, but I've looked into pbuilder so I can do it more easily with chroots, since having one vm for Karmic and another for Lucid seems a little out of place. I've looked around for documentation but it's been very cryptic to me so far. The packages already have git repos set up, it's mostly just the use of pbuilder that's got me stuck.
How can I get this set up easily, preferably to the point where I can script it for other developers here.