with NIP-94 and #blossom you can
So now we need to tell every nostr user that they will need their own infrastructure to own their data or pay a third-party =) Nostr not using S3-compatible API's by default is so retarded. They invented their own different way which was not needed. S3 is the standard for cloud storage.
https://vaporware.network ships provide S3 compatible sovereign data storage up to many TBs