Check something like PicoS3 or https://github.com/sentienhq/ultralight-s3 https://github.com/sentienhq/ultralight-s3 There is a few "very minimal" sigv4 implem

Check something like PicoS3 or https://github.com/sentienhq/ultralight-s3 https://github.com/sentienhq/ultralight-s3 There is a few "very minimal" sigv4 implementations ...