basic-rails/app/views/layouts/application.html.erb

<!DOCTYPE html>
<html>
  <head>
    <title>Basic Rails</title>
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <%= csrf_meta_tags %>
    <%= csp_meta_tag %>
    <%= stylesheet_link_tag "application", "data-turbo-track": "reload" %>
    <%= javascript_importmap_tags %>
  </head>
  <body>
    <nav>
      <%= link_to 'home', :root %>
      <%= link_to 'about', main_about_path %>
    </nav>
    <%= yield %>
  </body>
</html>