My Black Technology Shelter

Meteors fell from the sky, the sun was blocked, and scattered shelters were scattered in the ice and snow. Lu Chen held the nano core in his hand. Starting from self-study knowledge, he used the nano core to realize his ideas step by step, develop technology, and strive to survive. Can he finally walk into the starry sky. The story begins three days before the meteorite falls from the sky PS: Disaster stories have similar openings, but the content is different.