Sushi is a Gtk+ and Javascript-based quick previewer for Nautilus, the GNOME desktop file manager. Sushi is a DBus-activated service. It is capable of previewing documents, PDFs, sound and video files (using GStreamer), some text files, and possibly others in the future.

TreeView X is an open source and multi-platform program to display phylogenetic trees. It can read and display NEXUS and Newick format tree files (such as those output by PAUP*, ClustalX, TREE-PUZZLE, and other programs). It allows one to order the branches of the trees, and to export the trees in SVG format.

The mod_wsgi adapter is an Apache module that provides a WSGI (Web Server Gateway Interface, a standard interface between web server software and web applications written in Python) compliant interface for hosting Python based web applications within Apache. The adapter provides significantly better performance than using existing WSGI adapters for mod_python or CGI.

Git is popular version control system designed to handle very large projects with speed and efficiency; it is used for many high profile open source projects, most notably the Linux kernel.

Flwrap is a small desktop application that encapsulates a text file, an image file, or a binary file within a set of identifier blocks. Flwrap is designed to be used to best advantage with fldigi but can be used with any digital modem program.