However, in order to achieve all this, Chen Xin must obtain a stable channel for obtaining materials to ensure that he can obtain sufficient materials to meet the needs of system upgrades.

And he himself must ensure that his shelter produces enough to be exchanged for supplies.

Otherwise, even if there is an exchange channel, it will be for nothing if he can't come up with something to exchange.

Under such a premise, the planting greenhouse has become the key to everything, and only when the output of the planting greenhouse and the subsequent upgrade are ensured, everything Chen Xin wants can be carried out smoothly.

"In that case, the kitchen and weapon cabinet upgrades will have to be put on the back burner." Chen Xin is making tables on the computer, counting the materials needed for upgrades, and adjusting the upgrade priority of various facilities according to his actual needs.

At present, on Chen Xin's readjusted list, the first priority of upgrading is naturally the planting greenhouse, and Chen Xin even marked it in red as the highest priority.

And then there's the generator, which is key to keeping the shelter running.

However, the upgrade of the generator is not particularly urgent, if Chen Xin is willing to increase the use of oil, extend the daily power generation time, or connect the second backup generator to the power system of the shelter, then he still does not need to think about the power system in a short time.

Therefore, although the priority of upgrading the power system is high, it is not something that needs to be upgraded immediately.

The second is the weapon cabinet, after all, if you have to go out, no self-defense weapon will obviously make Chen Xin feel insecure.

As for the queue under the weapons cabinet, it is not the communication system upgrade that is necessary for Chen Xin, nor the kitchen that he has planned to upgrade for a long time, but the means of transportation, his SUV.

This is actually a very easy to understand inevitable choice, SUV is a good choice as a means of transportation in peacetime, but in this apocalypse, especially when Chen Xin also needs to transport vegetables out for material exchange, this kind of vehicle that is not designed to carry goods is obviously not enough.

This time, Chen Xin took out the materials exchanged with Mo Qingyan, only half of his output this month, if the planting greenhouse is successfully upgraded as planned, even if the ground is used to grow upland rice, hydroponic planting tray to grow vegetables, he can also harvest 1,200 catties of vegetables, and about 800 catties of carrots after maturity in the ground.

The total weight of so many vegetables is close to a ton, if Chen Xin just uses his own SUV to transport, I am afraid it will take several trips to transport it, not to mention anything else, just the consumption of gasoline, which is a problem that Chen Xin has to face.

Therefore, considering the future transportation needs, it is inevitable to upgrade the vehicle or get a new truck through the exchange of materials.

Mo Qingyan has a pickup truck there, and it was this car that was used to help drag the freezer to Chen Xin for refuge, but it was Mo Qingyan's car, and it was no problem to borrow it, but it was impossible to ask her to borrow a car every time she wanted to transport vegetables, right?

Although Mo Qingyan may not mind, Chen Xin still feels that this is not good.

As for the use of cars in low-temperature environments where the temperature will be lower and lower in the future, Chen Xin is not too worried.

Although most of the world's automakers do not have the spare time to design cars that can be used in polar climates, the cars themselves can still be used in environments of tens of degrees below zero.

This point has been well proved in the north of the Yan country in the past, you must know that the north of the Yan country, especially in the northeast region, is often minus thirty or forty degrees in winter.

Although the use of cars in this weather is a severe test, the vast majority of cars can still be used normally.

However, anti-freezing is indeed a problem that needs to be considered, after all, the car can stand it, and people may not be able to stand it too, and the low temperature of dozens of degrees below zero can really freeze people to death.

Recording these things that he thought of on this planner, Chen Xin turned off the computer, touched his hungry stomach, and prepared to get himself something to eat.

Tuo Vegetables has been blessed with the first harvest, and now Chen Xin's food is a lot richer, at least he doesn't have to eat only one bag of self-heating food every day, but can eat it with vegetables and canned luncheon meat, and occasionally add a meal to himself with canned pork.

The abundance of food not only increases the total amount of energy consumed by Chen Xin every day, but also makes the nutrition he obtains more balanced and rich, avoiding the possibility of malnutrition due to lack of food.

Coming to the "kitchen" in the living room, because the kitchen has been moved out of the priority of the upgrade plan, Chen Xin's current "kitchen" is just an induction cooker and a set of picnic pots and pans that Chen Xin used to use outdoors.

Of course, in addition, there is a simple cutting board and a fruit knife that can be used to chop vegetables, which are all cooking utensils used by Chen Xin when he went to participate in outdoor sports or survive in the wild.

Originally, there was also a folding gas stove, but that thing needed to be connected to an additional gas tank, and in the current post-apocalyptic situation, Chen Xin felt that it was better to save the tank of liquefied gas he had in reserve for a critical time.

Before the vegetable harvest, Chen Xin could only eat self-heating food every day, so he only used a small pot in the picnic pan that could be used as a frying pan or as a lunch box.

Now that he has vegetables and canned food, Chen Xin can at least add stir-fried cabbage or lettuce, or fried luncheon meat and fried luncheon meat with vegetables to his meal.

As for canned pork, because considering that it will be difficult to eat these canned foods after eating, Chen Xin did not eat every meal very luxuriously, but planned to open one a week to save as much as possible.

After all, pork is likely to be difficult to eat in the future, but canned luncheon meat, if you don't mind eating luncheon meat with cockroaches or rats as raw materials, Chen Xin believes that he should still eat it often in the future.

Thinking of this, Chen Xin also tore open the packaging bag of self-heating food, added a little water to it, and put it aside, and soon the heating bag in the packaging reacted with the water, and the heat was released.

At this time, Chen Xin took out the remaining half of the luncheon meat that he had not eaten in the morning from the canned box, cut it into thin slices on the cutting board, and then put a frying pan on the induction cooker.

A smell of meat spread along with the sizzling sound, which made Chen Xin, who hadn't smelled the smell of meat for a month, couldn't help but move his index finger.