How to install Rails, create a new Rails application, and connect your application to a database.

[coding-to-music]

https://guides.rubyonrails.org/v4.2/getting_started.html
Getting Started with Rails
This guide covers getting up and running with Ruby on Rails.

After reading this guide, you will know:

How to install Rails, create a new Rails application, and connect your application to a database.
The general layout of a Rails application.
The basic principles of MVC (Model, View, Controller) and RESTful design.
How to quickly generate the starting pieces of a Rails application.