slapt-get is an APT-like system for Slackware package management. It allows you to search Slackware mirrors and third-party package sources (such as www.linuxpackages.net) for packages, compare them with installed packages, and install new packages or upgrade installed packages, all with a few simple commands.
Swbis aims to implement the POSIX packaging standard with useful extensions. Working utilities include swpackage(8), swverify(8), swcopy(8), and swinstall(8). GPG/PGP signing and verification of tar archives is supported as well as an installed software catalog form that allows direct use of gpg(1) for verification of the GPG signature in the package database. swcopy and swinstall are network transparent by direct use of SSH and support multiple SSH hops for easy access to hosts behind a firewall. Neither has to be installed on the remote target host.
bdmn is client/server-oriented backup system. The daemon runs on the machine being backed up, and the client runs on the machine that stores the backup. It is very simple, but very fast. It only uses tar, gzip, uuencode, and Perl, so it is portable to many operating systems. It includes a very simple access control system for itself.