How to initialize the resources of App during the installation?

[KikkiZ]

I want to run some initialize code to generate some config files and resources that the app needs automatically when the user launches/installs the app for the first time.

I didn't find an introduction to it in the documentation. I wonder if there is any way to customize the installation process.

[biplab5464]

Looking for the same thing, if there's a way to run a specific function at installation time to make some configuration changes.