Once a user account is created it can be used to transfer the files using the SFTP. The credential of user remain as defined for the UI. In addition, a user can add as many as public keys as needed for the password less authentication.
sftp -oIdentityFile=~/.ssh/id_rsa email@example.com <<EOF mkdir Home/today put ./2020-03-05_00-02-06.png Home/today put ./2020-03-05_15-28-13.png Home/today EOF
For easy and quick installation, download CloudMounter from the Mac App Store (https://apps.apple.com/us/app/cloudmounter-cloud-encryption/id1130254674?mt=12)