spooky-c is a C version of Bob Jenkin's spooky hash. The only advantage over Bob's original version is that it is in C, not C++,'and comes with some test and benchmark code. This is a very competitive hash function, but is somewhat unportable (64-bit little endian only). It's more portable than some of the contenders like CityHash.
se is a screen-oriented version of the classic UNIX text editor ed. The editor implements many of the commands of ed, but instead of being line-oriented, se is screen-oriented. The command syntax is very familiar to users who already know ed. If you get stuck, there is a built-in help system that describes many of the available commands. Many configurable options can be loaded from a .serc file. se can be run interactively or in a script via the included scriptse utility. The editor is portable across many platforms, supporting major Linux and BSD distributions as well as other systems like GNU, Minix, Haiku, OpenSolaris, and Cygwin.
yuxtapa is a multiplayer real-time CLI game. It looks like a roguelike, but feels like a multiplayer 1st-person shooter with a focus on team play. The idea is to take the "feel" of such team based multiplayer games as Enemy Territory into an NCurses-based game with roguelike controls. Like roguelikes, yuxtapa is lightweight but surprisingly rich under the crude surface. It features several classes from which to choose, each with a different special ability, randomly generated maps which can also be saved and reloaded, and multiple game modes or objectives.
The PHP7 Framework provides a hybrid API for easier Web application security. It adds an exceptional filter feature on the superglobal input variables, which can be used, for example, as '$_GET->filtered->text["easily"]'. The simplistic db() implementation adds easier parameterized SQL atop PDO. phunction is used as a bootstrapping framework, and LiveUser is included as a permission backend.
Qataki is a shell script that you can use to read/post notices from the command line in a simple manner. It supports Identi.ca, Twitter, and StatusNet. You can post, reply, retweet, or send direct messages; read personal, public, and user and group timelines (last statuses); read messages directed to you (i.e. where you are mentioned); read messages in context (conversations available only for Identi.ca/StatusNet); and search for notices.
Brace is a dialect of C that looks like Python. It has coroutines, hygenic macros, header generation, and libraries with graphics and sound. It is meant to be good for beginners, kids, and experts. Brace is translated to C, then compiled, with #! support and cached executables. It is fairly portable, and runs on GNU/Linux, Unix, and Windows with MinGW. It should also run on Mac OS X. It comes with a lot of demo programs, many with animated graphics.
The Artificial SEM Image Generator (artimagen) library generates artificial scanning electron microscope (SEM) and helium-ion microscope images of various samples, including gold-on-carbon resolution samples and some semiconductor structures. Numerous effects that appear in real SEMs are simulated (noise, drift-distortion, edge-effect, etc.), which enables assessment of imaging, metrology, and other techniques that work with SEM micrographs. Unlike the real SEM images, the artificial images exhibit defined types and amounts of these effects, which is their key advantage.