Minio

The 100% Open Source, Enterprise-Grade, Amazon S3 Compatible Object Storage

Домашний S3-совместимый бэкап-сервер из подручных материалов

rclone

Rclone is a command line program to manage files on cloud storage. It is a feature rich alternative to cloud vendors' web storage interfaces. Over 40 cloud storage products support rclone including S3 object stores, business & consumer file storage services, as well as standard transfer protocols.

https://rclone.org/

# настроить профиль подключения
.\rclone.exe config
# список каталогов (buckets)
.\rclone.exe lsd ProfileName:

https://itdraft.ru/2019/12/06/ustanovka-i-nastrojka-rclone-bekapirovanie-v-s3-ili-cloud-mail-ru/