[CentOS] CentOS build scripts (or equivalent) acessible?

> http://mirror.switch.ch/ftp/mirror/centos/5.3/os/SRPMS/
>
> There are SRPM's there. If that's what you mean.
>
> I believe CentOS still uses Plague (internally)
>
>

I found this mail on the dev mailing list:

[CentOS-devel] CentOS 5 build scripts
http://lists.centos.org/pipermail/centos-devel/2007-May/001765.html

Build scripts seem to be private because of login/passwords etc.