shlink/config/autoload/redis.local.php.local

<?php
declare(strict_types=1);

return [

    'redis' => [
        'servers' => 'tcp://shlink_redis:6379',
//        'servers' => [
//            'tcp://shlink_redis:6379',
//        ],
    ],

    'dependencies' => [
        'aliases' => [
            // With this config, a user could alias 'lock_store' => 'redis_lock_store' to override the default
//            'lock_store' => 'redis_lock_store',
        ],
    ],

];