wired-circuit
OK, so best not installed.
Well Charlie read further and has pointed out that you can run SpiderOak in command line mode on SME server.
Install it initially using the rpm to save you doing those configuration hassles you asked about earlier.
eg download the rpm to your server and do
rpm -Uvh packagename
Re command line use of SpiderOak
I assume it would be a "configure once" scenario and leave it to run automated.
If you want to retrieve data, then do that from a workstation install.