The Sky Is Coming to Create the Ultimate Civilization!

He became an emperor through time travel, but he was in a small country that was about to be destroyed at any time. Fortunately the canopy is activated! While others are still fighting with cold weapons, I will just fill up the technology tree! Steam engine → electrification → information revolution → interstellar civilization, all the way! What about small countries? I will still build the ultimate civilization that will crush the whole world!