With the ability to make glass, Darius right away created windows for his cottage that were heavily tinted so that they could regulate the sunlight that poured in.
He also created windows for many of his sealed domes, even going as far as to replace some with thick glass entirely, rather than stone. He also created a greenhouse around his crops so that they would flourish better.
Speaking of, many had long since sprouted and some had even become ready for harvest. Darius was happy to include lettuce, cabbages, tomatoes, onions, and more to his diet.
He then created a metal construct that was shaped like a warehouse. Within this building, he created a special room made of metal that was set to be his cold room.
He placed the perishable goods in there and then created a receptacle in the middle of the room. Overcharging his mana by using channeling, Darius created a football-sized ball of ice that he placed in the receptacle.