Caching is a great way to speed up your applications. However, when a cache becomes stale, there could be a user experience degradation until the cache is rebuilt. In this episode, we look at implementing a background job to rebuild the cache.

In this episode, we continue the Trello clone by adding a collaborator invitation mechanism to join working on lists. We look at some tricky ActiveRecord relationships and various solutions.

Heroku is a Platform as a Service (PaaS), where you can deploy and manage your Ruby on Rails applications. It is one of the easiest platforms to deploy to; allowing you to focus on the development side of things instead of worrying about managing an infrastructure.

In this episode, we look at creating a Ruby on Rails application with OmniAuth as the authentication solution and write tests to ensure that it works properly.

Setting up "Sign in with Apple" can be confusing and complicated if you never dealt with Omniauth or with Apple's developer account. In this episode, we look at navigating through the Apple Developer account and setting up Omniauth to implement the Sign in with Apple.