View3D is a program to calculate radiation view factors, as used in radiant heat transfer problems in mechanical engineering, building design, furnace design, etc. Data input is via text file. There are 3D and 2D viewers for checking your input. View factors are output to another file for use with other calculation tools. View factors are also sometimes called "shape factors", "configuration factors", and "form factors".
libpwstor is a library implementing a password storage format for C programmers. This format provides a reasonable level of security by utilizing SHA-256 in addition to a random salt to mitigate dictionary and rainbow table attacks. In addition to the core functionality, libpwstor also offers some additional functions such as Base64 encoding and decoding. All functionality is implemented and designed in such a way as to be easy to use for C programmers of varying skill levels, while preserving reasonable security in the underlying storage format.
Proxymini is a proxy server that fully supports HTTP, HTTP CONNECT (for HTTPS and so on), SOCKS4 (TCP and TCP bind), and SOCKS5 (TCP, TCP bind, and UDP). It's designed to be small, and for being used in trusted environments where there is no need for complex or advanced options. Double-click on it and it will work immediately. It supports some options like the binding of a specific interface for incoming or outgoing connections, a custom port to bind (the default is 8123), and stdout and file verbose logging.
m9u is a music server, similar to mpd or xmms2. It sits in the background, waiting for commands to be delivered via a 9p file system. m9u embraces the Unix philosophy of doing one thing well. As such, it does not try to catalog or otherwise organize music, but aims for the more humble goal of simply playing it. A side effect of this approach is that m9u is trivially extensible to domains aside from music (for example, an image slideshow).
Pftf (Pining for the Fjords) is another take at time keeping and work time accounting. It lets you keep track of how much time you spent working on what, figure out how much work you are or were supposed to do, taking into account holidays, vacation, sick time, etc., and build graphs showing the acquired data.