Use Configuration inputs instead of the env/config files. Good news for the clients!

Laravel Nova.

First install the Nova package via composer:

composer require inani/laravel-nova-configuration

Next up, you must register the tool via the tools method of the NovaServiceProvider.

// inside app/Providers/NovaServiceProvder.php

// ...

public function tools()
{
    return [
        // ...
        new \Inani\LaravelNovaConfiguration\LaravelNovaConfiguration()
    ];
}

Publish the config file:

php artisan vendor:publish --provider="Inani\LaravelNovaConfiguration\ToolServiceProvider"

Then run the migration

php artisan migrate

After installing the tool, you should see the new sidebar navigation item for Packages Configuration. And then just you have to manipulate the settings.

use Inani\LaravelNovaConfiguration\Helpers\Configuration;

// Get the value of the API_GOOGLE key, null if it doesn't exist
$value = Configuration::get('API_GOOGLE');

// Get the value of the FOO key, 'BAR' if it doesn't exist
$value = Configuration::get('FOO', 'BAR);

If you want to update the display name of the tool in the Laravel Nova sidebar, You can simply update the sidebar-label in the following file

resources/views/laravel-nova-configuration/navigation.blade.php

Enjoy coding.