How to make the Settings Page for an app?

Hello All,
I’m posting this after extensively searching the docs and this forum, so I hope it’s no a redundant question:

How do I make the Settings Page for any Frappe app that I’m developing?

For example, in ERPNext, the Manufacturing module has its own settings page:

Similarly, the HR and Healthcare apps also have their own specialised settings pages. I want to be able to create that for my own app…

Hi @naveedpash:

This kind of config pages are, usually, single doctypes: a special type of data model with one single document.

Check this:
https://frappeframework.com/docs/user/en/basics/doctypes/single-doctype

Hope this helps.