// Note you could extend ShellHandRayPointer if you wanted the beam bending,
// however configuring that pointer requires careful setup of asset.
public class HL1HandRay : LinePointer
{
    public override Quaternion Rotation
    {
        get
        {
            // Set rotation to be line from head to head, rotated a bit
            float sign = Controller.ControllerHandedness == Handedness.Right ? -1f : 1f;
            return Quaternion.Euler(0, sign * 35, 0) * Quaternion.LookRotation(Position - CameraCache.Main.transform.position, Vector3.up);
        }
    }

    // We cannot use the base IsInteractionEnabled
    // Because  HL1 hands are always set to have their "IsInPointing pose" field as false
    // You may want to do more thorough checks here, following BaseControllerPointer implementation
    public override bool IsInteractionEnabled => IsFocusLocked || IsTracked;
}