s3proxy - send s3 backups to various backends

[BernhardMillauerAdventics]

Repo: https://github.com/gaul/s3proxy

S3Proxy implements the S3 API and proxies requests, enabling several use cases:

translation from S3 to Backblaze B2, EMC Atmos, Google Cloud, Microsoft Azure, and OpenStack Swift
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This service allows to send the s3 backups to various backends, in my case MS BlobStorage.