riak-sessions is a session store backed by Riak, the distributed database by Basho. It includes session implementations for both Rack and Rails 3.

A standard for authenticating requests among services

A simple ruby web server

provides a simple endpoint for your rails app to deliver a fun set of quotes

A toolkit of development tools created by RightScale.

A Rack-based Web Framework, but with extra awesome. Slightly Rails-like!

A rigorous A/B testing framework.

MediaWiki client

The Rio Slanger inherits from unmaintained project Slanger and continue to provide update and fixes

Built on top the riot test framework, adds rack specific helpers and macros

Rity is a lightweight Ruby webserver that runs inside an EventMachine loop and puts each request into a fiber.

A Ruby client for RMS(Rakuten Marchant Service) WEB API

Rack middleware that inserts the X-Robots-Tag into all responses.

Dynamic robots.txt for different Rails environments with Rack.

Passenger is an Apache module for Ruby on Rails support.

Simple routing lib

Simple OAuth 2.0 provider toolkit

Compile Opal assets trivially on Roda

A ruby ffi wrapper for ModSecurity that also provides a Rack middleware

Sass plugin for Roger based on libsass