Is it possible to install sshd onto the roku?

I want to be able to edit the xorg.conf (which is I assume what's being used to configure the display) because I want to put my tv inside a 1940's cabinet where the porthole is of odd dimensions, but I don't seem to be able to find anying on the net about enabling sshd apart from some telent instructions that don't work.

I have a roku 3 ... is this possible in any way?