Tk is a graphical user interface toolkit that takes developing desktop applications to a higher level than conventional approaches. Tk is the standard GUI not only for Tcl, but for many other dynamic languages, and can produce rich, native applications that run unchanged across Windows, Mac OS X, Linux and more.
FontForge allows you to create and modify postscript, truetype and opentype fonts. You can save fonts in many different outline formats, and generate bitmaps.
Installing
W3c-libwww is a highly modular, general-purpose client side Web API written in C for Unix and Windows (Win32). It's well suited for both small and large applications, like browser/editors, robots, batch tools, etc. The purpose of libwww is to serve as a testbed for protocol experiments.
Iptables and netfilter is a Linux kernel 2.4+ iptables administration tool. netfilter and iptables provide a Linux kernel framework for stateful and stateless packet filtering, network and port addresss translation, and other IP packet manipulation. The framework is the successor to ipchains.iptables is built on top of netfilter, the packet alteration framework for Linux 2.4.x and 2.6.x. It is a major rewrite of its predecessor ipchains, and is used to control packet filtering, Network Address Translation (masquerading, portforwarding, transparent proxying), and special effects such as packet mangling.
Gnucash can track finances in multiple accounts, keeping running and reconciled balances. It has an X based graphical user interface, double entry, a hierarchy of accounts, expense accounts (categories), and can import Quicken QIF files.
The i2c bus is used by many modern motherboards to provide hardware health monitoring data, like temperature and fan speed. This software provides the kernel modules to use these sensors.
Unlike other codecs like MP3 and Ogg Vorbis, Speex is specially designed for compressing voice at low bit-rates for applications such as voice over IP (VoIP). In some sense, it is meant to be complementary to the Ogg Vorbis codec.
This project is composed of a library is used to render flash animations, a plugin for mozilla based browsers, a nautilus thumbnailer for swf files (soon to be packaged) and a gtk+ flash player (soon to be packaged too)
The libmusicbrainz (also known as mb_client or MusicBrainz Client Library) is a development library geared towards developers who wish to add MusicBrainz lookup capabilities to their applications.