Spar uses Rack and Sprockets to provide an asset development environment very similar to the asset pipeline found in Rails. It also has built in deployment tasks for deploying your entire site to AWS S3 and Cloudfront.

A DSL and framework for building AI powered applications through the use of Generators, Actions, Tasks, and Agents

A no-hassle way to launch one-off EC2 instances from the command line

Injects additional configuration for Cucumber so that it outputs JSON suitable for auto-parallelism without affecting stdout.

Automatically rebuild and preview TRNML plugins in multiple views

UsePacks is a gem that helps in creating and maintaining packwerk packages.

Datacenter Hypervisor

Run an accessibility audit on a file or URL from the command line.

Acmesmith is an [ACME (Automatic Certificate Management Environment)](https://github.com/ietf-wg-acme/acme) client that works perfect on environment with multiple servers. This client saves certificate and keys on cloud services (e.g. AWS S3) securely, then allow to deploy issued certificates ont...

autoproj is a manager for sets of software packages. It allows the user to import and build packages from source, still using the underlying distribution's native package manager for software that is available on it.

A CLI for managing Chef Environments using Berkshelf and the Environment Cookbook Pattern.

Sprockets test runner and toolkit

Generators for creating BOSH releases

使用 Markdown 编写书籍内容，通过 burr 将其转换成 PDF，ePub 和 Mobi 格式电子书。

Choco brings the MVC to the client side! It allows you to easily develop maintainable Rich Internet Applications using Javascript.

Chronicle-ETL allows you to extract personal data from a variety of services, transformer it, and load it.

Daru (Data Analysis in RUby) is a library for analysis, manipulation and visualization of data. Daru-view is for easy and interactive plotting in web application & IRuby notebook. It can work in frameworks e.g. Rails, Sinatra, Nanoc and hopefully in others too.

Dice Bag is a library of rake tasks for configuring web apps in the style of The Twelve-Factor App. It also provides continuous integration tasks that rely on the configuration tasks.

A CLI Tool for managing your dotfiles

Dubious is a web framework written in Mirah.