Ursa is available across all major cloud providers (GCP, Azure, AWS). It also supports pluggable write ahead log storage. For latency relaxed workloads, we use object storage to get the cost down. So it works with AWS S3, GCP GCS, Azure Blob Store. For latency sensitive workloads, we use Apache BookKeeper which is a low-latency replicated log storage. This allows us to support workloads ranging from milliseconds to sub-seconds. You can tune it based on latency and cost requirements.