llm.rb is an advanced runtime for building capable AI applications on CRuby. By default it has zero runtime dependencies although certain functionality (such as ActiveRecord support) require optional dependencies that are opt-in.

Automatically set per-request locale in Rails applications

This gem helps out when your application depends on subdomain support and you don't want to modify you /etc/hosts file all the time for your development environment.

Lock and cache methods, in case things should only be calculated once across processes.

Seamlessly integrates Aloha Editor into the Rails 3.2 asset pipeline.

Logify is an incredibly light-weight Ruby logger with a developer-friendly API and no dependencies. It is intentionally very opinionated and is optimized for speed. This combination makes it perfect for command line applications.

Put your financial application logs to work with logstash FIX filtering

Use database lookup tables in AR models.

Opinionated logger which outputs messages in JSON format

A Jekyll theme (that looks awesome). Louie is free, lightweight, and customizable as a blog, archive, or portfolio.

A Ruby client for the HTTP/2 version of the Apple Push Notification Service.

Lowkiq

luhnacy can be used to validate strings for Luhn compliance as well as generating valid or invalid strings for the purposes of testing

Efficient Luhn checksum validator

Ruby library for the WHM & cPanel API; It's not a half day or anything like that

Ruby wrapper to manage LXC (Linux Containers).

I am Magi.

MagicLamp provides an easy way to get your Rails templates into your JavaScript specs.

Manage the mails you send from Rails.

This gem provides Ruby access to the ManageIQ API by exposing the ManageIQ collections, resources and related actions as Ruby objects and equivalent methods.