Ruby developer since early 2000s
Loading hook for Rails models
Utility classes and Ruby extensions beyond Active Support
SimpleDelegator on steroids: automatic delegation, decorator class inference, etc.
Rails Engine to allow ActiveRecord associations be set up in the DB instead of being hard-coded.
SharedForm for Rails
DB-driven user roles & permits for Rails with CanCan support
Presentation layer for Rails models to replace Draper
Everything is a message!
Rails Engine to let models inherit partials until overridden.
Your gem’s authors abstraction
Rails Engine providing some tools to organize your application records, e.g. lists, tags, flags, etc.
Find a related class for an object (ex., a decorator, a presenter, a controller, or whatever).
All the shared stuff.
Action AI is a framework for designing AI interaction layers for Rails.