LARAVEL - web env configurator not work, if .env file not exists with good parameters

I want to add a configurator so that after downloading my project and unpacking, the user could go to / install and configure the .env file.

I try this packege: https://github.com/RachidLaasri/LaravelInstaller.

But in my project it does not work if there is no .env file with some parameters (for example, database).

How to be? how to fix it?

Maybe to create a configurator separately of the laravel framework?

via Chebli Mohamed