The super system dominates the end of the world and reaches the full level in an instant

"Ding, the host absorbs one hundred first-level crystals, the system level is upgraded to second-level, and the portable space is expanded to ten cubic meters." Ye Fan traveled to the end of the world, and with a super upgrade system, he found that this place is full of unlimited business opportunities.What, you are a world-class network engineer?Give you five catties of potatoes as a benefit fee, and write the smart operating system for me.This beauty is okay, it is said to be...