shlink/config/autoload/logger.local.php.dist

<?php

declare(strict_types=1);

use Monolog\Level;
use Shlinkio\Shlink\Common\Logger\LoggerType;

return [

    'logger' => [
        'Shlink' => [
            'type' => LoggerType::STREAM->value,
            'destination' => 'php://stderr',
            'level' => Level::Debug->value,
        ],
    ],

];