No prob. This one is an easy change too, but if you are not familiar with S3 or AWS regions, it could be confusing. If you created the bucket in the AWS console, then you created it in the us-east-1 region, which has the "s3.amazonaws.com" endpoint. The region used in the README is just meant to be an example. In your case, you should pass in `Aws\Common\Enum\Region::US_EAST_1` or `'us-east-1'`.