I don't have time for a longer description

Convert between Mercator Meters and Latitude/Longitude (and vice versa)

An RFC6962-compliant implementation of Merkle Hash Trees

https://github.com/0dayinc/meshtastic/README.md

A small library to allow metaprogramming via method_missing without dealing with regular expression hell.

A rewrite of the MeteoUB library wich gets, parses and stores weather data from infomet.am.ub.es

Improvement to Methadone Clinic [http://github.com/dennisjbell/methadone-clinic] that adds subcommands, option interaction rules (requires/excludes), and improved argument handling, while continuing to provide a lot of small but useful features for developing a command-line app, including an opin...

Simple Ruby library for caching instance method of a class. Using Rails.cache as default caching.

Allows you to disable methods at run-time, such as when you want to ensure that certain methods are never called during a test suite.

Methodic : provide Hash table options arguments manager (specifications and validations

Slice your PostgreSQL tables in uniform partitions using the id module

Automated deployment of your Middleman blog to Github Pages

Turns a video file into an animated gif.

michelson - test simulator / runtime for type-safe 'n' functional (crypto) contracts

This Gem provides and easy to use API for sending and receiving data and commands for the microAeth model AE51. This library is not complete but encompasses the most common commands for interfacing with the device.

Pedal-to-the-metal HTTP client for GET requests

Implements the NameValuePair API provided by micropayment.de

Use the micropayment API in your Rails project.

A small state machine! You don't need all that other crap. What's not included here is as important as what's included.

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.