Crea estructura de roles y grupos para cualquier modelo, considera ademas las 3 tablas de join que pudiesen darse

Butter makes setting up a company blog on Rails insanely easy. It's built for developers to save us from hosting, DB setup, themeing, maintaining yet another Wordpress install. It's designed to be quickly integrated to an existing Rails project.

ActionView Helper for generating Bootstrap buttons.

c0f - CAN of Fingers. CAN Bus fingerprinting to passively determine make/model of vehicle

cableguy

Easily add caching to models

Middleware for embedabble comments.

Create a cache model for your active records

Facilitates sweeping the cache by the click of a button

CacheCow provides an api for caching results of methods and associations on ActiveRecord models.

The 'cached' command line tool provides an easy to use *nix caching tool.

Use cached_at for ActiveRecord cache key

Denormalize your belongs_to associations

Verify cache key dependencies

Cache nonchanging ActiveRecord models in memory

A better way of controlling cache dependencies than 'belongs_to :product, touch: true'

A serializer for Rails models that prevents unnecessary lookups

A little cache managing system for Rails

Integrates ActiveRecord with cache stores provided by Rails.cache, incluing memcached

CachEmAll is a gem which aims to make the use of Rails 4's fragment caching even easier.