To be charitable I hope the author refers to the S3 API here, of which there are several competitors and open source implementations. Many companies offer "obj

To be charitable I hope the author refers to the S3 API here, of which there are several competitors and open source implementations. Many companies offer "object storage" which is compatible with the S3 API And there are some open source projects such as Minio which offer the same (and I forget what are the others?)