Includes a thread pool, message passing capabilities, a recursive mutex, promise, future and delay.

The official appsignal.com gem

Microsoft Azure Resource Management Key Vault Client Library for Ruby

Microsoft Azure Storage Management Client Library for Ruby

Execute commands remotely over SSH and WinRM

When a Cucumber step fails, it is useful to create a screenshot image and HTML file of the current page

Cool.io provides a high performance event framework for Ruby which uses the libev C library

Git history statistics generator

A Rubyesque interface to Gmail, with all the tools you will need. Search, read and send multipart emails; archive, mark as read/unread, delete emails; and manage labels.

TweetStream allows you to easily consume the Twitter Streaming API utilizing the YAJL Ruby gem.

Simple Configuration Management Tool

A Docker Driver for Test Kitchen

Settings gem for Ruby on Rails

When a Cucumber step fails, it is useful to create a screenshot image and HTML file of the current page

Awesome rails logs

With the simple-navigation gem installed you can easily create multilevel navigations for your Rails, Sinatra or Padrino applications. The navigation is defined in a single configuration file. It supports automatic as well as explicit highlighting of the currently active navigation through regular expressions.

Process your uploads in the background by uploading directly to S3

DataMapper core library

Ethereum.rb is Ruby Ethereum client using the JSON-RPC interface. Provides interface for sending transactions, creating and interacting with contracts as well as usefull toolkit to work with Ethereum node.

fluent logger for ruby