Presto is an open source federated, distributed SQL query engine used for the Open Data Lakehouse. It enables querying data where it lives.
Also note that the easiest way to run Presto in AWS instead of this AMI is to use the Ahana Cloud Community Edition, a free forever managed service for Presto on AWS: https://ahana.io/get-started/ It includes everything you need to get started with an Open Data Lakehouse in AWS; a managed service for Presto, a managed Hive metadata catalog, pre-configured data sources including S3, and basic BI support with built-in Apache Superset.
With the PrestoDB AMI, you can easily get started with Presto to query data wherever your data resides.

Contact us at support@ahana.io to learn more about how we can help support your PrestoDB deployment.