I have enough spare parts to keep my older stuff going. I have a wood gas generator half built so I will not need gasoline. I could start a high priced Uber system.
I have maintained computer fire alarm systems, building control systems, 3 MW power systems, Computer controlled generators... Unanticipated events are the killers.
Half built??? HALF BUILT??!?? How could you be so careless!? You could get hit with an EMP tomorrow!!!
I live in a treehouse in the woods and subsist on a diet of nuts and berries so that I won't be dependent on any technology when the Russians EMP-nuke our entire country!