(Help) Any ways to hide cables in plain sight under desk?

I'm aiming to join the club and create an Ikea PC station (2x Alex + 1x Karlby). However, my desk sits in front of my stairs, so I will be able to see the underside of where the desk is as I climb the stairs.

Does anyone have any suggestions of how I might be able to hide or tidy the cables up in a nice way given that I will be able to see the underside of the desk please?