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