Thank you! For some reason my MinIO console doesn't have the administrative pages, maybe because it is "community edition". But I seem to be able to access all of those configurations from the command line tool.

However so far I still can't upload an image for a contact. I get the error: "Error! Unable to upload, please try again." This message shows up in the debug console:

Object { uploaded: false, uploaded_key: "" }
dt-storage.js:481:23

But the image does appear in the MinIO storage, under:
dtstorage/221c0ffe60c032777009706bf8e30e/contacts/z1jVESRflKPqS4KTGK0WE2H768Oriuz2Js4bDpJMxA3unKcMilYiiEYJRUAebptl.JPG

Here is a screenshot of my storage settings, with the key and hostname removed:

1. In addition to your login usr/pwd credentials; from the Minio Admin Console, create access and secret keys.

2. Next, navigate to the Region settings and specify an arbitrary regional name.

3. If you've not already done so, create a new bucket.

4. Navigate to the D.T Admin Storage Settings and enter recently generated information. Ensure Path-style endpoint is enabled. Also ensure the correct protocol (HTTP/HTTPS) is specified within endpoint field.

5. Save storage settings.

6. On page reload, test the connection to confirm all is well. Make a note of any errors and share.

7. Assuming a successful connection has been established, you are now setup and ready to use the D.T Storage feature.

In addition to the attached screenshots, please explore the following links; as you may find running Minio within a Docker Container easier; regarding local testing.

• Setting Up MinIO with Docker Compose and Localhost Aliases
• Bitnami Object Storage based on MinIO

New settings:
  Access Key: minioadmin
  Secret Key: <password>
  Default Region: default
  S3 Endpoint: <server>:9000
  DNS-style bucket+hostname:port template for accessing a bucket: <server>:9000
  Encryption password:
  Path to GPG program: /usr/bin/gpg
  Use HTTPS protocol: True
  HTTP Proxy server name:
  HTTP Proxy server port: 0

This worked, and I can list files in the storage:

s3cmd ls s3://dtstorage
   DIR  s3://dtstorage/images/

I put these settings in DT, and the "test connection" started to succeed again. Perhaps what was needed was to remove https from the endpoint.

However so far I still can't upload images: I can see on the minio trace logs:

2025-11-12T10:40:14.955 [200 OK] s3.PutObject <server>:9000/dtstorage/221c0ffe60c032777009706bf8e30e/contacts/REb7JTZjDJoZGAkjiGcaFUt3ZXn82XlM2Ch4gtxnUsw8Fs298OQ0ylZQe3WQNwRI.png 10.20.0.2        15.913ms     ⇣  15.868531ms  ↑ 412 KiB ↓ 0 B

but the contact page file upload says: "Error! Unable to upload, please try again."