tkbiff allows arbitrary commands to be executed upon mail reception. If you like programs such as xbiff and xbiff++ but wish they were more flexible, then you'll like tkbiff. Unlike other biffs, tkbiff is fully customizable. tkbiff also doesn't waste your valuable screen space with icons; instead, it shows you the mail itself. It supports UNIX, Mac, and Windows, IMAP, POP, and UNIX-style mail files, and SSL and APOP.
Real-Time Control Systems Library contains a mix of software found to be useful in the development of real-time control systems at the National Institute of Standards and Technology. It includes the Neutral Messaging Language (NML), which is used for simple configurable communications for both Java and C++ applications on a variety of operating systems. It also includes classes for converting between various coordinate systems (collectively called posemath), some XML parsing and generating tools, an .ini file reader, a timer interface, and more.
"Stupid Simple VPN" is a virtual private networking program contained as source in a 7.0KB tarball. It does not daemonize, and is intended to create a temporary VPN for emergency circumstances when you "just need a pipe" without the hassle of authentication, keys, encryption, and compression. It runs on OS X using the tuntaposx driver and Linux 2.6 using the native tuntap driver.
SYINF shows in brief a system's CPU brand and model, RAM size, disk space, operating system, regional parameters, and current date and time. It can run in interactive (menu) or batch mode. There are two versions, in the C and C++ languages. They have been tested on 20 (15) compilers, 26 (25) operating systems, and 18 architectures. (Figures in parentheses are for the C++ version.) Both versions are conveyed in source code form only, each as a single ~35 KB source text file.
Steel Bank Common Lisp is a development environment for Common Lisp, with excellent support for the ANSI standard: garbage collection, lexical closures, powerful macros, strong dynamic typing, incremental compilation, and the famous Common Lisp Object System (multimethods and all). It also includes many extensions, such as native threads, socket support, a statistical profiler, programmable streams, and more. These are all available through an integrated, interactive native compiler which feels like an interpreter. SBCL is unique in being a multiplatform native compiler which bootstraps itself completely from source, using a C compiler and any other ANSI Common Lisp implementation.
JobRunner is a tool designed to run a job (i.e., to execute a commandline or script) which does not require user interaction, and to store the program's output (standard error and standard out) in an easy-to-read log file. It is able to save a configuration file of the job to be run, which can be used by JobRunner_Caller as a lightweight queueing system. See the Primer included in the archive for extra details on usage examples.