DSWIM is a powerful informational tool for Debian's packaging system. Designed with an integrated approach it combines the functionality found in several other programs and scripts. This provides users with a centralized approach for querying the installation, allowing programmers the liberty of writing smaller and simpler code.
IPFS (IPSquad Package From Source) is a system which allows you to trace an program's installation from sources and register it in your favorite packaging system (only the Slackware package system and RPM are currently supported). IPFS watches a command (generally make install), collects the list of added files, and then registers them in the chosen packaging system as if the install was made from a normal package. Unlike other similar products, IPFS is able to track both shared and statically linked programs.
Nhopkg is a lightweight and powerful package manager system for Unix-like operating systems. Nhopkg can install, remove, update, search, and manage software packages in its own .nho format. Nhopkg aims to be a universal package manager. Because of this, Nhopkg isn't only a package manager, but is also a set of guidelines to pack up software for any machine. Therefore, to check package dependencies, Nhopkg searches for specific files instead of package names.
With 'nixstaller' you can easily make installers for Unix-like systems. Some of the project goals: support for many different platforms, support for different (optional) frontends used by the installer (currently FLTK, ncurses, GTK 2, and Qt are planned), ease of use for the install creator and the end user, different ways of installing (extract files to a location, compile software on the user's system, and maybe even integration for the package manager running on the user's system). Nixstaller can be fully translated and is programmed in C++ and sh.
Simple Perl Package Manager tracks the files added or deleted from a system by using "find". It can detect modified files using installwatch, make backups of modified or deleted files, and remove, list, or make a tarball of a package. It records MD5 checksums of all installed files and includes a script to verify them and check other attributes of a package.