Ok but when i have it how to automate to create self creating packages for salix?

How to create auto compile for salix packages on ubuntu? I would like to create auto compiler who will constantly build packages an put it on mirror for our community.Is there a posibility for that on non salix or slackware systems? How is this used for main auto build package systems?

Its there a way to implement the same kickstar file that was in centos? Yes i know that we don't have anaconda but maybe some fork?