must_be provides runtime assertions which can easily be disabled in production environments. Likewise, the notifier can be customized to raise errors, log failure, enter the debugger, or anything else.

DB constraints in migrations similiar to ActiveRecord validations. Core classes

Postgresql constraints in migrations similiar to ActiveRecord validations

Naive Bayes classifier

This gem simulates named-parameters in Ruby. It's a complement to the common Ruby idiom of using Hash args to emulate the use of named parameters.

Lookup native package dependencies required by gems on your machine.

Maintains a catalog of native library packages required by Ruby gems, and a parser to load catalog files. It can be extended to maintain additional catalogs e.g. for other package dependency manager such as npm.

Natural provides a framework for answering 'naturally' worded questions like 'how many books did I buy last month' or 'list my Facebook friends'.

The Java Jar files for the Neo4j Advanced edition, adding advanced monitoring – licensed under the AGPL, see http://neo4j.org/licensing-guide/

The Java Jar files for the Neo4j Community, a high performance, fully ACID transactional graph database – licensed under the GPL, see license - http://neo4j.org/licensing-guide/

The Neo4j Enterprise Jar files, adding online backup and High Availability clustering – licensed under AGPL, see http://neo4j.org/licensing-guide/

A simple, ready to go JRuby wrapper for the Neo4j graph database engine. Nothing more then Neo4j and Ruby goodness

a ruby client for the NetFlix API

Netscaler api working against the Citrix Nitro api. Currently supports Nitro 9.3. Hope to add support for 10.X. Currently has support for som basics such as adding servers/services/servicegroups.

The fastest dependency injection framework

Provides a fast, cross-Ruby implementation of the ngramdistance distance algorithm.

This project intend to offer a full notification system, back and front-end.

This library provides an interface to NetSuite via'RESTlets'. This appears to be a quicker and more reliableway of interfacing with NetSuite records than the SOAP API.

utella is a framework to create and run RoomApps

OAuth Core Ruby implementation