1{
 2  den.default.nixos = {
 3    nix.settings = {
 4      experimental-features = ["auto-allocate-uids" "cgroups"];
 5
 6      # Select UIDs for builds automatically, EXPERIMENTAL
 7      auto-allocate-uids = true;
 8      # Required by auto-allocate-uids
 9      use-cgroups = true;
10      # Automatically hard link identical files in the Nix store
11      auto-optimise-store = true;
12      # Remote servers preferred substituters instead of local builders
13      builders-use-substitutes = true;
14      # Unlimited HTTP connections
15      http-connections = 0;
16      # Use `$XDG_STATE_HOME/nix/...` instead of `$HOME/.nix-...`
17      use-xdg-base-directories = true;
18
19      trusted-users = ["@wheel"];
20    };
21  };
22}