Am I Doing Infrastructure Construction in the World of Immortality?

Lin Yi traveled through time and was tested to have the worst miscellaneous spiritual roots, and was ridiculed. He was sent to the most desolate "Qinglan Wasteland" in the sect to fend for himself. After activating the system, he did not go to the mountain to practice hard. Instead, he began to draw blueprints, recruit refugees, and use merit points to exchange for "Indigenous Cement Technology" and "Basic Formation Integration" to build walls and spiritual field irrigation systems. ·Climax: The beast tide comes, and other outer disciples struggle to resist. Lin Yi's "Qinglan Development Zone" easily resists with the help of fortifications and automated formations, and harvests the monster resources in reverse, shocking the entire sect.