Starting with an empty Rails app. instead of via IDE

I used IDE to create my first Rails app. It created variety of folders
and little auto-generated code as well. One of such file is:

I don't want to start working with this auto-generated code. I want to
start with an empty Rails application and add folders and files

To do this, which folders and files I need to create manually. Which
hierarchy Rails understands?

Hey Rohit

Your IDE probably ran “rails new” for you. This is the command to create a new Rails project. This generates the basic set of files and folders you would need for a new project.

I intentionally install using this option. Which folders and files are
needed if I need to manually create them?

What option? You have not quoted the previous messages so no-one
knows what you mean without searching back through previous email
messages. Remember this is a mailing list not a forum.

To see what folders and files you need then run
rails new testapp
That will generate the basic files/folders that you need for a rails

Then for a new app if you do not want to use rails new then just
replicate the folders and files that rails new testapp created.
Though why you do not want to use rails new (if I understand what you
are saying correctly) I can not imagine.