In order to get this to work with PHP 8, I am using laminas/laminas-zendframework-bridge as a bridge to the abandoned zendframework/zend-stdlib within the composer.json config.
This might not work with all features as it seems there are some issues even on PHP 7.
This package is no longer maintained.
You can install using:
curl -s https://getcomposer.org/installer | php
php composer.phar install
At that point, follow the instructions in the documentation folder for actual usage of the component. (Documentation is forthcoming.)