In the bedroom, Chen Xin was leaning against the bed using CAD design software on his laptop to design the door of the shelter.
When upgrading the system items or the shelter, modifications can be made according to Chen Xin's ideas, so Chen Xin decided to incorporate a bit of his own thinking into the design of the shelter door.
As the first gateway to resist external invasion and the most solid defense, the door of the shelter, in Chen Xin's conception, is not just a door.
Back when the disaster was about to strike and the survival group was discussing how to build a doomsday shelter, many plans were proposed for this question.
The initial proposal came from the boss who made water purification equipment. He referenced the Federation's strategy of converting abandoned missile silos into shelters and proposed buying an abandoned air raid shelter to convert into a small shelter where everyone could live together to form a small community.
