Keep DB schema in sync across branches effortlessly. Install once, use rails db:migrate as normal, and let the gem handle the rest.

a work-in-progress Ruby compiler, written in Ruby and C++

Framework for building maintainable business processes

A framework for building reusable, testable & encapsulated view components in Ruby on Rails.

Sequel: The Database Toolkit for Ruby

Routing Tree Web Toolkit

Debugging in Ruby

Padrino is a full-stack ruby framework built upon Sinatra.

Rubocop cop for ensuring that all code is covered with specs