After I Handed Over Black Technology, Everyone in the County Gave Me One Every Day

[Tycoon-level wealth + infrastructure development + turning everything over to the state + mastermind behind the scenes + technological superiority + patriotism + fast-paced and invincible] After struggling and failing in a big city, Su Han returns to his impoverished hometown, Cangyun County, a tiny backwater. By chance, he awakens the Civilization Leap Infrastructure System. Every permanent resident added to Cangyun County earns him one yuan a day! From the start, he makes 300,000 yuan a day and launches into a frenzy of spending: buying up unfinished buildings, building superfactories, and constructing a maglev high-speed railway. Even more astonishingly, infrastructure development can be exchanged for extraordinary black technology! As the countdown begins to the invasion of Earth by abyssal dark matter, Su Han doesn't choose to fight alone. Instead, he decisively turns over room-temperature superconductors and genetic serums to the state! The Great Xia nation's supreme command is shaken, and the S-rank Kunlun Project is launched! The whole country joins forces with Su Han to build infrastructure, and 100,000 elite troops are stationed in Cangyun County. While foreign powers are still mocking Cangyun County as a shabby rural backwater, an interstellar war fortress hovering in the sky has already taken off from there...