Export customization to custom app

Hi Guys,
I have created a custom app in my bench. Now I need to export all my customisation done in erpnext, to the custom app. So that I can use the customisation as an installer. Here the customisation I am mentioning is the changes I have done in ERPNext app.

Is it possible?
If there is any way to do this kindly guide me.

Thanks & regards

What kind of customizations?

In erpnext UI as per my requirement, I need to hide some modules, Need to add some users, add charts etc. those customizations must be exported to new custom-app.

When I push this app in git other user can able to clone it and use my data.

It is related to user permissions.

Fixtures may help.

Fixtures may help.