I thought the post installation setup process was non user friendly (for example, having to go to the terminal to setup your password on a mobile device isn't that great for a newbie user experience) so I decided to write a small app to allow an easy GUI setup for users.
This application is only at his early development, and I'm open for anybody to contribute to the project.

I have currently implemented a pin setup, but I'm planing for a language setup (UI lang + keyboard language setup) and, maybe, default applications.
If you have any idea, feel free to ask down on this thread

The source code is available on github: https://github.com/Ad5001/PMSetup

EDIT 3.11.17: Default applications have been implemented!