Shellac gives you an environment aware helper for purging configured under config/varnish.yml built ontop of Max Schoefmann's klarlack gem

Simple access control for Shibboleth/Rails environments

Factory shift methods collection

Make your ActiveRecord IDs non-obvious

A simple shop gem that integrates a cart and coupons functionality

Provides routes that redirect back to Shopify pages.

ShoppingCart plugin provides checkout functionality, which can be integrated into your online store and configured according to your business logic.

Multi-tenancy for Spree 3.x.x

hmm

Gem introduces the functionality of the basket and the order menu

ShopQi app engine.

ShopQi app webhook engine.

Short Circuit adds simple presenters for Rails views.

We miss the respond_with_content_type matcher in shoulda-matchers.

Shoulda Matchers gem extension for Active Model (Rails) callbacks (after_create, before_create, after_update, before_update...)

Shoulda Matchmakers generates regression specs for existing ActiveRecord models and ActionController controllers using Shoulda Matchers. It generates specs for model validations, associations, nested attributes, enum definitions, attribute serialization, database columns and database indexes as well as controller REST routes, and before/after/around actions/filters. It can also generate FactoryGirl factories containing the minimum attributes required for the factory to create a valid object. Shoulda Matchmakers is based on the Regressor gem by Erwin Schens.

A simple and easy DSL to test rails routes.

A simple shrew gem

A gem for using shutl_resources easily in a Rails app

A hand-rolled alternative to Sidekiq Pro batches. Track a group of Sidekiq jobs as a batch in PostgreSQL, get atomic completion detection, and fire a callback worker when the batch finishes (success or failure).