Install PHP >7.3
https://www.php.net/downloads
Install Composer
https://getcomposer.org/download/
Install dependencies (--no-dev when in production)
composer install
Regenerate autoload classmap (run once)
composer dump-autoload
Run unit tests
./vendor/bin/phpunit tests
Use the PHP binary built in webserver to run in a development environment
php -S localhost:8080