Qiniu Resource (Cloud) Storage SDK for Ruby. See: http://developer.qiniu.com/docs/v6/sdk/ruby-sdk.html

Differentiate development environment from production

Ruby compiler and runtime for the google protocol buffers library.

rubygems plugin that allows you you to install a gem from from its github repository (like 'edge'), or from an arbitrary URL

Switching database connection between readonly one and writable one.

Cakefile — A Podfile for your main project. 🍰Describe Xcode projects in a human readable format and (re)generate one on demand.

An AES encrypt/decrypt gem built ontop of OpenSSL. Not as quick as FastAES, but it doesn't require building native extensions and supports Base64 encoded input and output.

Ruby client for the https://www.contentful.com Content Delivery API

Easy Diff enhances the functionality of Hash, allowing recursive diff, merge, and unmerge of arbitrarily constructed hashes. This is perfect for people who need to do diffs on not only plain text files but also data as Hash or JSON objects. Unmerge is included with diff and merge to more easily allow versioning of arbitrary data.

Faraday middleware for wrapping responses into Hashie::Mash.

Detect changes in file system. Works anywhere.

Background processing, simplified

Use the GoodData::Client class to integrate GoodData into your own application or use the CLI to work with GoodData directly from the command line.

Add the ability to use the Google Authenticator with ActiveRecord.

Email processing solution for Ruby on Rails applications

A Kafka (http://kafka.apache.org/) producer and consumer

Reverse proxy for Ruby on Rails

Implemention of Payments Initiation (ISO 20022)

SequenceServer lets you rapidly set up a BLAST+ server with an intuitive user interface for use locally or over the web.

Sequent is a CQRS and event sourcing framework for Ruby.