Used create a living style guide at yoursite.com/style_guide

styleus is a support tool for creating a fast and simple component based html style guide.

Stylexicon is a mountable Style Guide / Pattern Lexicon. It makes it easy for a designer to build a style guide for a site, and to provide a eay for content creators to easily view a site's style guide / available content modules. This helps to provide a consistent brand.

Generates styles for cyt projects.

Rails engine for a living style guide.

Stylist provides powerful stylesheet management for your Rails app. You can organize your CSS files by media, add, remove or prepend stylesheets in the stylesheets stack from your controllers and views, and process them using Less or Sass. And as if that wasn't awesome enough, you can even minify...

Very simple parial based components.

subdomainitis provides easy, simple support for using wildcard subdomains as controller parameters in Rails 3

This adds a routing constraint and controller methods to allow dynamic subdomain-based routing.

Subdomain validator for Rails application.

Feature flags for Rails with selectable backends. Use Subflag Cloud (SaaS), ActiveRecord (self-hosted), or Memory (testing). Get typed values (boolean, string, integer, double, object) with the same API regardless of backend.

Sublease is a tenanting engine for Rails 4.2 and greater applications using a shared database or schema.

Layout for all SublimeVideo applications.

Subscription management gem for rails.

Easy wildcard domains in rails

Prevent from submitting form twice for rails.

Adding better subdomain support to rails

Description of Subscribem.

Subscriptions, Plans, Renewals

gem for http://subtlepatterns.com