Morphine is a lightweight dependency injection framework for Ruby. It uses a simple Ruby DSL to ease the pain of wiring your dependencies together.

Alki (AL-kai) is a Dependency Injection framework for Ruby. Helps organize and scale your project, so you can focus on the important stuff.

A lightweight dependency injection container for Ruby

Dependency injection container compatible with the SOAR Ruby framework

SmartInject is a minimalist, flexible and efficient dependency injection for Ruby based on constructor injection, one of the most used method for DI. SmartInject is intented to be under your control. No magic here.

Minimal dependency injection container for Ruby