Outlets let you reference Stimulus controller instances and their controller element from within another Stimulus Controller by using CSS selectors. In this episode, we look at a simple example and then refactoring some older code where we used some workarounds to communicate with other stimulus controllers.

Kamal (MRSK) deploys web apps anywhere from bare metal to cloud VMs using Docker with zero downtime. In this episode, we will set up a Digital Ocean infrastructure with a Load Balancer, Virtual Machines, and a PostgreSQL database. We'll use Kamal (MRSK) to provision and deploy our Rails application to the Virtual Machines.

In this episode, we look at adding system tests in our application to test our Stimulus Controllers. We'll also look at how to DRY up some of the tests and how to run them in a headless environment.

Be default, Refile does not have a way to secure file downloads. It relies on a generated hash that is unknown to users unless the page renders that image or has a download to that file. This is okay sometimes, however, protecting the file from being downloaded for those who have the URL is a bit more involved.

Using WebSockets, we are able to create a realtime notification between browsers. Useful for in-app messaging, chats, and more! Learn how to use Faye's Publish and Subscribe methods. I believe that this paves the way for successfully using and learning the upcoming ActionCable.