The Debian Archive Software consisting of dak (Debian Archive Kit) for the archive and the buildd related parts wanna-build/sbuild.

dak is the collection of programs (scripts) used to maintain the Debian project archive. You need a running postgresql

http://lists.debian.org/debian-dak/

All the archive info managed by dak are stored in the ProjectB database, which is accessible by all DebianDevelopers on mirror.ftp-master.debian.org.

Logs of Dak activity are also available in /srv/ftp-master.debian.org/log/current there as well.

See also: HowToSetupADebianRepository, DakHowTo, ProjectB.