Open/Closed principle states "software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification"; that is, such an entity can allow its behaviour to be extended without modifying its code.

Using Hotwire and the Mapbox API, we can track the location of a user and playback their recorded GPS coordinates.

I use Docker every day and it has make my development workflow much simpler. I don't have to deal with conflicts or issues with macOS since everything is containerized. Before, I would fight my host operating system with mismatched dependencies and configuration problems, but using Docker during my development workflow has simplified things. In this episode, we'll run through how I use Docker on Rails applications and some of the tricks I use to solve the nuances of this approach.

In this episode, we look at setting up our Campfire instance to be deployable with Kamal instead of the Once CLI. This has a few benefits over the standard deployment mechanism if you are going to be tweaking and making your own changes to the Campfire code. We'll also look at taking in the incoming changes from Once to rebase into our Kamal setup.

In this episode, we look at cleaning up our Active Storage variants and also look at several different use cases to manipulate the images with resizes, watermarks, format and quality.