In the End of the World, I Rely on Zombies to Build an Empire

[Apocalypse + farming + infrastructure + zombies + technology + black technology + evolution + wits + single male protagonist + technology flow] They just want to kill the zombies, and I want the zombies to do the work. In the eleventh year of the zombie outbreak, a control algorithm engineer who had been besieged for ninety-two days used an oscilloscope and a roll of copper wire to make a zombie raise its hand. Then he realized: These people don't need to be paid.