Tiny python runtimes without the operating system

Screaming-fast Python 3.5+ HTTP toolkit integrated with pipelining HTTP server based on uvloop and picohttpparser.

Structured concurrency in C

ShellCheck, a static analysis tool for shell scripts

Tool for creating argparse interfaces.

HippyVM - an implementation of the PHP language in RPython

A high performance ruby, written in RPython

Sublime Text 3 plugin for Android development