3D-printed controller mod that allows an Xbox Series X/S controller to be used with one hand. Resting the controller on a surface (or your lap) allows for control of the secondary joystick when you move the controller, while the D-pad or ABXY buttons are relocated to the opposite side. This mod can be 3D-printed to be used with either your left or right hand.
Here is a description of how to assemble from Akaki