$_ENV['APP_NAME'] ?? 'Kaffeekasse SaaS', 'env' => $_ENV['APP_ENV'] ?? 'production', 'debug' => (($_ENV['APP_DEBUG'] ?? '0') === '1'), 'url' => rtrim($_ENV['APP_URL'] ?? 'http://localhost:8080', '/'), 'timezone' => $_ENV['APP_TIMEZONE'] ?? 'Europe/Berlin', 'app_key' => $_ENV['APP_KEY'] ?? '', 'db' => [ 'host' => $_ENV['DB_HOST'] ?? '127.0.0.1', 'port' => (int) ($_ENV['DB_PORT'] ?? 3306), 'name' => $_ENV['DB_NAME'] ?? '', 'user' => $_ENV['DB_USER'] ?? '', 'pass' => $_ENV['DB_PASS'] ?? '', 'charset' => 'utf8mb4', ], 'rfid_shared_secret' => $_ENV['RFID_SHARED_SECRET'] ?? '', ];