Apocalyptic Disasters: I Stockpile a Hundred Billion in Supplies First

(Apocalypse + Natural Disasters + Zombies + Superpowers + Technology + Pocket Dimension + Stockpiling Supplies) Xu Bin is reborn before the apocalypse begins and first stocks up on 10 billion worth of supplies. Naturally, he'll buy delicacies and ingredients from all over the world and stash them away. When apocalyptic disasters and the zombie crisis arrive, Xu Bin uses high-tech weapons and all kinds of superpowers to crush his enemies, level up by fighting monsters, loot everything for free, and enjoy a sweet life with his wife. He carves out a place for himself in the world. (No saintly heroics.) He stockpiles supplies as the apocalypse descends, with zombies and mutated creatures running rampant. Armed with all kinds of superpowers, the protagonist takes on all comers and becomes the most powerful man in the wasteland. He uses alien technology to build a unified Blue Star. The main heroine is Li Ya, and more heroines may join later. The pocket dimension has a touch of fantasy to it. In the middle and later parts of the story, the protagonist also establishes his own elite faction. I'm a new author, so please be kind.