Felix is a programming language with a fully featured purely functional subsystem embedded in a a traditional Algol-like imperative programming system. The system features garbage collection, static typing, parametric polymorphism, overloading, regular expression matching, and a lot more. A scripting harness is used to invoke source files, but fully compiled binary shared libraries are generated, yielding both rapid prototyping and high performance. Seamless binding of C/C++ code makes interfacing existing libraries easy. Control inversion provides language-level cooperative multi-tasking.
Wu is small command-line application that retrieves weather data from Weather Underground (including current conditions, historical data, forecasts, active alerts, and station lookup). The program is designed to be extremely fast and generally compliant with the Unix philosophy. Wu is written in Go, and requires a Go compiler to build from source.