Ragel compiles finite state machines from regular languages into C, C++, Objective-C, D, Ruby or Java code. Ragel allows the programmer to embed actions at any point in a regular language. Non-determinism can be controlled through the use of embedded priorities and guarded regular language operators. Ragel also supports the construction of scanners and the building of state machines using state-charts. Ragel can be used to create robust recognizers and parsers which run very fast. It can work with integer-sized alphabets and can compile large state machines. The generated code has no dependencies.

fbcat grabs a screenshot of a framebuffer and stores in a PPM file.

stressant is designed to run on new machines to make sure they will work reliably by testing various parts of the system (CPU, RAM, disk, network) by putting them under heavy load and try to detect failures.

SCM conforms to the R5RS (Revised^5 Report on the Algorithmic Language Scheme) and IEEE P1178 specifications, and is portable across many architectures and operating systems. It additionally includes a set of popular Common Lisp functions, POSIX and X Windows integration, and the Hobbit scheme-to-C compiler.