Save expensive calculation time using Rack::Attack, we will learn how to limit requests coming into our application. This gem not only limits requests, but can be used to blacklist or whitelist users as well.

In this episode, we look at some common functionality that we got with Rails UJS and what it looks like to reimplement these with Hotwire's Turbo and StimulusJS.

Using Interact.js to create draggable and droppable items in our view, we can use AJAX callbacks on events to interact with our Ruby on Rails application. Also, learn how to use Ruby Assets to manage our Javascript Libraries.

Mountable Engines are a great way to extract code into its own namespace and allow the code to be reused in other applications. Other popular gems that are mountable engines are Devise and Doorkeeper.

Using the paper_trail gem, track changes to model records for auditing purposes and rollback changes when required.