Puppet, an automated administrative engine for your Linux, Unix, and Windows systems, performs administrative tasks (such as adding users, installing packages, and updating server configurations) based on a centralized specification.

A Rails plugin for mobile devices in Japan

EBNF is a Ruby parser for W3C EBNF and a parser generator for PEG and LL(1). Also includes parsing modes for ISO EBNF and ABNF.

A parser, generator, and validator for CDDL

Ektoplayer is a commandline client for http://ektoplazm.com, a website providing free electronic music such as techno, goa and psy-trance

Pack and unpack RPG Maker data files, for use on pokemon infinite fusion

RPxem is a Ruby implementation of Pxem, an esoteric programming language that enables you to create programs in 0-byte files.

Pack and unpack any RPG Maker VX Ace data files