<p>Darcs is a distributed revision control system written in Haskell. In

Darcs, every copy of your source code is a full repository, which allows for

full operation in a disconnected environment, and also allows anyone with

read access to a Darcs repository to easily create their own branch and

modify it with the full power of Darcs' revision control. Darcs is based on

an underlying theory of patches, which allows for safe reordering and

merging of patches even in complex scenarios. For all its power, Darcs

remains a very easy to use tool for every day use because it follows the

principle of keeping simple things simple.  Darcs is free software

licensed under the GNU GPL.</p>

<h2><a href="http://evergreen-ils.org/">Evergreen</a></h2>

<p>The Evergreen Project develops an open source ILS (integrated library

system) used by hundreds of libraries across the world. The software, also

called Evergreen, is used by libraries to provide their public catalog

interface as well as to manage back-of-house operations such as

circulation (checkouts and checkins), acquisition and cataloging of

library materials, and sharing resources among groups of libraries and

consortia on the same Evergreen system.  Evergreen is designed to be

scalable and supports library operations ranging from a small high school

to large state-wide consortia.  Evergreen is released under

the <a href="http://www.gnu.org/licenses/gpl-2.0.html">GPLv2</a>-or-later.</p>

<h2><a href="http://www.foresightlinux.org/">Foresight Linux</a></h2>

<p>Foresight is a desktop operating system featuring an intuitive user

interface and a showcase of the latest desktop software, giving users

convenient and enjoyable access to their music, photos, videos,

documents, and Internet resources.</p>

<p>As a Linux distribution, Foresight sets itself apart by eliminating

the need for the user to be familiar with Linux.</p>

<h2><a href="http://www.gevent.org/">Gevent</a></h2>

<p>Gevent is a fast, coroutine-based networking library for Python.

Gevent is used in network applications, including servers that scale

up to tens thousands of connections but without the complexity usually

associated with event-driven architecture.</p>

<p>Gevent provides light-weight &ldquo;green&rdquo; threads with a similar

interface as the standard “threading” and

“multiprocessing” packages.  The library includes a DNS

resolver, a WSGI server, a monkey patching utility to make 3rd party

protocol implementations cooperative and support for SSL sockets.</p>

<h2><a href="http://www.git-scm.org/">Git</a></h2>

<h2><a href="http://www.inkscape.org/">Inkscape</a></h2>

<p>Inkscape is an Open Source vector graphics editor, with capabilities

similar to Illustrator, Freehand, CorelDraw, or Xara X using the

open-standard Scalable Vector Graphics (SVG) file format. Inkscape's

main goal is to create a powerful and convenient drawing tool fully

compliant with XML, SVG, and CSS standards.</p>

<p>In contrast to raster (bitmap) graphics editors such as Photoshop or

Gimp, Inkscape stores its graphics in a vector format. Vector graphics

is a resolution-independent description of the actual shapes and

objects that you see in the image. This description is then used to

determine how to plot each line and curve at any resolution or zoom

level.</p>

<h2><a href="http://www.k-3d.org">K-3D</a></h2>

<p>K-3D is the free-as-in-freedom 3D modeling, animation, and rendering

system for GNU/Linux, MacOSX, and Windows operating systems. K-3D is based

on a powerful Visualization Pipeline that enables procedural modeling and

a robust plugin architecture, and is designed to scale to the needs of

professional artists.</p>

<h2><a href="http://kohanaframework.org">Kohana</a></h2>

<p>Kohana is an elegant HMVC PHP5 framework that provides a rich set of

components for building web applications.  It requires very little

configuration, fully supports UTF-8 and I18N, and provides many of the

tools that a developer needs within a highly flexible system. The

integrated class auto-loading, cascading filesystem, highly consistent

API, and easy integration with vendor libraries make it viable for any

project, large or small.</p>

<h2><a href="http://libbraille.org/">Libbraille</a></h2>

<p>Libbraille is a computer shared library which makes it possible to

easily develop software for Braille displays. It provides a simple API

to write text on the display, directly draw dots, or get the value of

keys pressed on the Braille keyboard. Libbraille supports a wide range

of Braille displays with a serial or USB connection and can

auto-detect most of them. Libbraille supports the terminals of the

following manufacturers: Alva, Baum, Blazie Engineering, EuroBraille,

HandyTech, Hermes, ONCE, Papenmeier, Pulse Data, TechniBraille and

Tieman.</p>

<h2><a href="http://www.selenic.com/mercurial/wiki/">Mercurial</a></h2>