Lightweight state machine extracted from ActiveModel

Validates european vat numbers. Standalone or as a ActiveModel validator.

Terraspace: The Terraspace Framework

Real Vim ninjas count every keystroke - do you? Pick a challenge on vimgolf.com, fire up Vim, and show us what you got.

RGL is a framework for graph data structures and algorithms

A Rails plugin for mobile devices in Japan

ActiveRecord attributes stored serialized in a json column, super smooth. Typed and cast like Active Record. Supporting nested models, dirty tracking, some querying (with postgres jsonb contains), and working smoothy with form builders. Use your database as a typed object store via ActiveRecord, in the same models right next to ordinary ActiveRecord column-backed attributes and associations. Your json-serialized attr_json attributes use as much of the existing ActiveRecord architecture as we can.

Authorize.Net SDK includes standard payments, recurring billing, and customer profiles

Qiniu Resource (Cloud) Storage SDK for Ruby. See: http://developer.qiniu.com/docs/v6/sdk/ruby-sdk.html

Configurable tool for writing clean and consistent Slim templates

Vonage Server SDK for Ruby

Thinreports is an open source report generation tool for Ruby.

JSON::LD parses and serializes JSON-LD into RDF and implements expansion, compaction and framing API interfaces for the Ruby RDF.rb library suite.

Packaging automation for Puppet FOSS projects

Runs a thread inside your Sidekiq processes to report metrics to CloudWatch useful for autoscaling and keeping an eye on your queues. Optimised for Sidekiq Enterprise with leader election, but works everywhere!

tDiary is so called Weblog.

Provides numerous tools for installing, managing and running the Unity game engine from command line.

System service for D-Installer, an experimental YaST-based installer.

A Ruby wrapper for the World Wide Web Consortium’s online validation services.

This gem contains various helper mechanisms for creating exploits. This includes SEH Overwrite helpers, egghunters, command stagers and more.