If the user clicked through from an affiliated site, this middleware will track affiliate tag, referring url and time.

Rack middleware for rblineprof (github.com/tmm1/rblineprof)

A cli for generating reveal.js presentations from markdown.

A light-weight Sinatra-inspired web framework for web sites and applications of any size.

Process GitHub Webhooks in your Rails app (Controller mixin)

A drop-in replacement for GraphQL ActionCable subscriptions for AnyCable.

Autoscale your Heroku dynos

This is a gem for Rails with Semantic UI assets inside.

Milkode is line based local source code search engine. It have command line interface and web application. It will accelerate the code reading of your life.

Inserts P3P header

Eat Pancake Stacks for Breakfast

The Plezi.io Ruby Framework for real time web applications.

Flash hash implementation for Rack apps.

Rack::Health is a health check interface for rack applications.

Web page speed optimizations at the Rack level

Declaratively filter data via URL params, in any Rack app.

High Performance and Optimized Preforked Rack Handler

SproutCore is a platform for building native look-and-feel applications on the web. This Ruby library includes a copy of the SproutCore JavaScript framework as well as a Ruby-based build system called Abbot.

Stubb is the second mate.

vmpooler provides configurable pools of instantly-available (running) virtual machines