depfinder finds the dependencies of Slackware packages. The dependency list can be output to stdout, to a .dep text file without version information, or to a slack-required file with version information. depfinder is very fast; its speed is mainly due to the C++ code that is used in depfinder to find in which package each individual library is included. It also has support for running multiple jobs, which makes it a lot faster when used with multiple CPUs/cores. depfinder supports detecting dependencies of binary files compiled with languages such as C or C++ and it can also detect Python dependencies.
flex-fw is a small and fast front-end for the Linux iptables utility with an easy command syntax like ipfw or pf from BSD systems. It features service-oriented configuration, support for network profiles, which is useful for notebooks, support for macros, easy migration to another network environment by redefining macros, easy distribution to many hosts, syslog logging support for iptables errors and dropped packets, an interactive mode for manually configuring "on the fly", a batch mode for execution from shell scripts, and a library mode for using the flex-fw functions in your shell scripts.