I recall MIA having the simplest pilot self parking system imagineable, just a large mirror in front of the aircraft, so that one could see the guiding line for the nosewheel and the cross line for stopping, no other human intervention was necessary, definitely D.i.Y. none of the "improved" methods whereby one had to intepret lights and/or keep looking sideways to guess when one was at the correct stopping point - which led me to almost drive an engine into a passenger boarding bridge one day. Didn't, but it was close.
KISS