# S3-compatible You can use [Amazon S3][s3] or any other S3-compatible storage (like [MinIO][minIO] or [Ceph Object Gateway][ceph]) to handle your image uploads in HedgeDoc. Your S3 bucket must be configured to be writeable. You just add the following lines to your configuration: (with the appropriate substitution for ``, ``, ``, and `` of course) ```dotenv HD_MEDIA_BACKEND="s3" HD_MEDIA_BACKEND_S3_ACCESS_KEY="" HD_MEDIA_BACKEND_S3_SECRET_KEY="" HD_MEDIA_BACKEND_S3_BUCKET="" HD_MEDIA_BACKEND_S3_ENDPOINT="" ``` `` should be an URL and contain the protocol, the domain and if necessary the port. For example: `https://s3.example.org` or `http://s3.example.org:9000` If you use Amazon S3, `` should contain your [Amazon Region][amazon-region]. For example: If your Amazon Region is `us-east-2`,your endpoint `` should be `https://s3.us-east-2.amazonaws.com`. [s3]: https://aws.amazon.com/s3/ [minIO]: https://min.io [ceph]: https://docs.ceph.com/en/latest/radosgw/ [amazon-region]: (https://docs.aws.amazon.com/general/latest/gr/s3.html)