The .about.yml mechanism allows an project to publish and maintain metadata that can be easily maintained by project owners, that is visible and accessible to interested parties, and that can be harvested and processed by tools and automated systems.

Ruby wrapper for Access API

ActionModel helps to structure model logic with actions.

ActiveBugzilla is an ActiveRecord like interface to the Bugzilla API.

This gem provides an interface to transcoding services such as Ffmpeg, Amazon Elastic Transcoder, or Amazon Elemental MediaConvert.

Wraps GitHub's Gist API with a class implementing the ActiveModel modules. So, it should be pretty familiar to anyone who's ever used models in Ruby on Rails.

Rails engine to register jobs history, adding: job state, error feedback, duration, etc.

RSpec Matchers for ActiveModel::Serializer Associations

ActiveMongoid facilitates usage of both ActiveRecord and Mongoid in a single app by providing an inteface for inter-ORM relations.

ActiveRecord style Object Graph Mapping for neo4j

Sharding library for ActiveRecord(MySQL)

ActiveRecord instrumentation for Rails, Resque and Sidekiq

An implementation of repository pattern that can connect with any ORM

Wraps the Dropbox Storage Service as an Active Storage service - https://www.dropbox.com

Integrates Paperclip as a field for Administrate in Rails apps

Adds validation methods to ActiveModel for validating dates and times. Works with multiple ORMS.

another Github IRC Gateway

This gem is designed to work with Rack applications that serve as back-ends for Amazon Alexa skills.

Include Angularjs in rails and nothing more (ripped from angular-rails)

A lightweight Ruby wrapper around Ansible that allows for ad-hoc commands and playbook execution.