[PHP] laravel/php?? test github question

Hi/morning...

Got a test github laravel app. Has minimal setup/install steps.

The app -- GitHub - jijunair/laravel-referral: A custom Laravel package that provides referral system functionality for your Laravel applications.

I'm curious as to what it looks like, so trying to install/run it from
my cloud/Apache.

I'm "guessing" on the install/setup steps from different apps, but I'm
missing something that appears to be basic.

in the dir
/var/www/html/jijunair
cd /var/www/html/jijunair
  all the github files are here
    sudo -u www-data composer install
    sudo -u www-data composer require jijunair/laravel-referral
    npm install

however, the "require" cmd... gives
Root package 'jijunair/laravel-referral' cannot require itself in its
composer.json

so.. anyone have any pointers/thoughts?

thanks

As I said, guessing!!