If this listing refers to Garage's S3-compatible object storage, test uploads, downloads, listing, and deletion with the client SDKs your applications use. Include large objects and concurrent requests. Then take a node offline and verify availability and data integrity according to your chosen replication layout.
Record capacity planning, credentials, backup strategy, and how you will replace a failed node. S3 compatibility does not make an object store operationally identical to a managed cloud service; restore and failure behavior should drive the decision.
Akousa