Comment by PhilippGille

They point to AIStor as alternative.

Other alternatives:

https://github.com/deuxfleurs-org/garage

https://github.com/rustfs/rustfs

https://github.com/seaweedfs/seaweedfs

https://github.com/supabase/storage

https://github.com/scality/cloudserver

https://github.com/ceph/ceph

Among others