Launching custom DocTypes with my custom app installation

Hello world,
How could I create/launch custom doctypes on my custom app installation, just like erpnext installation that adds new doctypes?

I’ve figured it out.
I’ve enabled the developer mode on my site

bench --site <mysite> set-config developer_mode 1

Then I opened up my frappe website and just added the DocTypes I need under my custom app as the module and make sure to uncheck the custom checkbox to save the DocType files.
The saved DocType would be under


Now you can push the changes to your repo and your DocType is now contained in your custom app.

On installing your custom app to a site, you would find a progress bar for updating the DocTypes

Updating DocTypes for <yourapp> [=====================]