Now, 109 commits and more than a month later, I was finally able to open the scripts to the wide public. The scripts are in use on all .debian.org machines and some other mirrors already, so Im fairly sure they work.
Read it here
As I already wrote, Debian mirror admins are strongly encouraged to use this scriptset and not to invent their own. In case you miss a feature either send me a mail describing it, or better, a patch implementing it. Im happy to implement as much as possible (and sensible ) And while it is discouraged to use own scripts, sometimes people have reasons to have their own, so there is now a minimal set of functionality that such a script MUST support.