Do you mean "how am I SSHing to the remarkable"? That's pretty straightforward - follow https://remarkablewiki.com/tech/ssh. I'm just doing it from my laptop. You don't have to SSH though, you can plug a keyboard in as well but that's a little more involved.

Oh I thought you were SSHing to your laptop / server from the Remarkable.

Yeah, you could if you plug a keyboard into the remarkable as it’s just running Linux. The plug position is a bit awkward though.