Welcome to Rails

You've just created a brand new Rails application by running rails new myapp. This page is rendered by Rails::WelcomeController, which is mounted automatically when you don't yet have a root route.

"Rails is the framework that maximizes programmer happiness." — David Heinemeier Hansson

About your application's environment

# config/routes.rb
Rails.application.routes.draw do
  # Define your application routes per the DSL in
  # https://guides.rubyonrails.org/routing.html

  # Defines the root path route ("/")
  # root "articles#index"
end

What to do next

Open config/routes.rb and define a root route.
Generate a scaffold: bin/rails g scaffold Post title:string body:text.
Run migrations: bin/rails db:migrate.
Start the console: bin/rails console to poke at your models.
Visit the routes table at /rails/info/routes.

Need help?

The official Rails Guides cover everything from Active Record to Action Mailer. Pair them with the API docs and you'll be shipping in no time.