Unsettings is a graphical configuration program for the Unity desktop environment which lets you change some of Unity's settings. It also lets you save your settings into and load from a text file (in JSON format) so you can easily back up your settings or copy them to a different account.
neko-install-cd is a development tool for modifying System Rescue CD images. It can also perform many other operations. It has a simple interface with excellent inline help. Operations it can perform include: booting your modified image in a virtual machine, burning the original or modified image to a USB drive, creating patch sets from your modifications (using aufs or built-in helper scripts). All of these operations can be performed directly from your Linux distribution, without having to first boot into the system rescue CD as with the system rescue CD equivalents.
QSynergy is a comprehensive and easy-to-use graphical front end for Synergy. Synergy lets a user control more than one computer with a single mouse and keyboard (and has lots and lots of extra features on top of that). Since Synergy only has a GUI for MS Windows, QSynergy was written to step in and fill this gap for users on Mac and Unix platforms.
YAGAC is a library that when linked to your C program, allows you to conveniently track or trash memory leaks within your application while it is still running. You can have multiple garbage collectors according the code part you are in. It tracks memory assigned by your code only, and does not monitor third part libraries. Tracking can be activated by updating a debug flag without restarting your application. It is intended for use with daemon-type programs.