anchor.diff:      serviceConfig.StartInterval = 360;
     };
   
  -  services.activate-system.enable = true;
  +  services.nix-daemon.enable = true;
   
     nix.extraOptions = ''
       gc-keep-derivations = true
  
positive.code:   nix.binaryCachePublicKeys = [ "cache.daiderd.com-1:R8KOWZ8lDaLojqD+v9dzXAqGn29gEzPTTbr/GIpCTrI=" ];
    nix.trustedBinaryCaches = [ https://d3i7ezr9vxxsfy.cloudfront.net ];
    nix.trustedUsers = [ "@admin" ];
  
    programs.nix-index.enable = true;
  
  
negative.code:   programs.zsh.enableFzfGit = true;
    programs.zsh.enableFzfHistory = true;
  
    programs.zsh.variables.cfg = "$HOME/.config/nixpkgs/darwin/configuration.nix";
    programs.zsh.variables.darwin = "$HOME/.nix-defexpr/darwin";
    programs.zsh.variables.pkgs = "$HOME/.nix-defexpr/nixpkgs";
  
  