Maybe I don't understand what this service actually does. When you take away the file expiration and the convenience of not having to manage your own infrastructure what is left? I've had this script in ~/bin for years.

  SERVER="example.com"
  LOCATION="public_html/uploads"
  BASE_URL="http://$SERVER/uploads"
  
  scp "$1" "$SERVER:$LOCATION"
  echo "$BASE_URL/$1" | xclip -i