I wish there was a PG extension, FDW or something that would facilitate blobs being stored externally but managed with regular database operations. sure you can

I wish there was a PG extension, FDW or something that would facilitate blobs being stored externally but managed with regular database operations. sure you can store a reference to it, but your application needs to handle everything in concert with database transformations. Bonus points if it can interface with S3(compatible) versioning to give these virtual blobs an audit trail and rollback. How sweet would it be to have a profile pic that could be updated and rolled back with just a little SQL?