Source files of a project based on a tutorial for Slim PHP by Grafikart : https://www.grafikart.fr/tutoriels/php/slim-framework-831
Download the source files, then :
composer install
php -S localhost:8080 -t public/ -ddisplay_errors=1 -dzned_extension=xdebug.so
You can check demo.php
for the source code of the first part of the tutorial.