Check out Wayblue, they make some custom universal blue images based off fedora silverblue which includes a hyprland image. I’m running a modified way blue image myself these days and loving it. Technically it’s a secureblue image based on a way blue image but yeah same difference
Was using NixOS but just could not deal with lack of FHS compatibility. Even the workarounds like nix-ld and nix-alien didn’t help with some key scripts I needed to run for secure network verification stuff. So I just migrated to this plus nix/home-manager for my application management
On the topic of your digestive tract “remembering” its last source of energy: I read years ago about the effect your diet has on your gut microbiome and the role it plays in setting your cravings. My understanding is that the type of food you eat encourages certain bacteria to grow in your gut which like those ingredients, and they release hormones and neurotransmitters that trigger your cravings for more of what the bacteria like. So there is a real physical change happening that creates and sustains these cravings based on your diet