Makesure is a set of tools to define, verify and monitor systems in a unix environment. It allows you to schedule commands that constitue a system via cron (and monitors the execution of those commands), it gives you a way to verify the state of a system (and alerts you when there are problems), and it provides a simple mechanism for collecting statistics about that system.

IMDB client using the IMDB API that their iPhone app uses

MetaWhere offers the ability to call any Arel predicate methods (with a few convenient aliases) on your Model's attributes instead of the ones normally offered by ActiveRecord's hash parameters. It also adds convenient syntax for order clauses, smarter mapping of nested hash conditions, and a debug_sql method to see the real SQL your code is generating without running it against the database. If you like the new AR 3.0 query interface, you'll love it with MetaWhere.

Generate a cache.manifest file for your html5 offline app

A library to allow photo manipulation on S3 images using RMagick

A simple Whirl interpreter

Implements asychronous, distributed state broadcasting for ActiveModel-like objects.

Mario is a collection of utilities for dealing with platform specific issues.

A Markov Chain text generator library

An ode to the Rat Pack (Dean Martin) with a Sinatra style DSL for creating command line interfaces to your applications

learning about jeweler and making my first gem

A simple framework for communicating with 37signals' Campfire API. Currently still a work in progress.

Mattwilko AASM is a continuation of the acts as state machine rails plugin, built for plain Ruby objects.

If you misspell a method in IRB this plugin searches through methods defined on the object and calls the closest method to the one you entered. For example lets say you typed: 'hello world'.capitalze Instead of raising a NoMethodError 'hello world'.capitalize would automatically be called.

RoundRobin handler for ZMQ over EventedMachine

Easy upload management for ActiveRecord

A library to enable per user / group authentication on a read / write basis for git repositories running over ssh

The MBTA Realtime V2 API unifies "schedule, alert, vehicle position, and arrival prediction data". The MBTA Realtime gem provides a Ruby interface to the API, presenting results using sensible Ruby defaults.

Finding closest fibonacci less than integer

MDArray-jCSV (jCSV for short) is the first and only (as far as I know) multidimensional CSV reader. Multidimensional? Yes... jCSV can read multidimensional data, also known sometimes as 'panel data'. jCSV is based on Super CSV (http://super-csv.github.io/super-csv/index.html), a java CSV library. According to Super CSV web page its motivation is 'for Super CSV is to be the foremost, fastest, and most programmer-friendly, free CSV package for Java'. jCSV motivation is to bring this view to the Ruby world, and since we are in Ruby, make it even easier and more programmer-friendly.