{ inputs, lib, ... }: {

  nix = {
    settings = {
      auto-optimise-store = lib.mkDefault true;
      build-dir = "/var/tmp";
      experimental-features = [ "nix-command" "flakes" ];
      #flake-registry = ""; # Disable global flake registry   This is a hold-over setting from Misterio77. Not sure significance but likely to do with nix.registry entry below.
      trusted-users = [ "root" "@wheel" ];
      warn-dirty = false;
    };

    # Add each flake input as a registry to make nix3 commands consistent with your flake
    #registry = lib.mapAttrs (_: value: { flake = value; }) inputs;

    # Add nixpkgs input to NIX_PATH
    # This lets nix2 commands still use <nixpkgs>
    #nixPath = [ "nixpkgs=${inputs.nixpkgs.outPath}" ];

    # Garbage Collection
    gc = {
      automatic = true;
      dates = "weekly";
      randomizedDelaySec = "14m";
      # Keep the last 2 generations
      options = "--delete-older-than 28d";
    };

  };
}