Rails on Fire is an example project used by the Ruby on Fire blog to provide use case examples of Rails features and techniques.
Please visit the blog and read through any posts you desire. All posts are linked back to code examples in this project.
Ever blog post has a matching PR with all the example code, you could read through any closed PR’s source code to understand how to implement a feature. All PR’s titles are appropriately named.
You can also read through the source code of the project.
Enjoy!