Slackware's PackageManagement format.

These are simply TarBalls of the software, to be extracted in the filesystem root. They contain a desciption and postinstall script in /install, which are removed after successful installation. It doesn't get any more bare bones.

A large repository of Slackware packages is available at

You can use swaret or Slapt-Get to achieve dependency handling on Slackware much the way Debian's APT system works.