anchor.diff:      fonts = with pkgs; [
         source-code-pro
       ];
  +    fontconfig.defaultFonts.monospace = [ "Source Code Pro" ];
  +  };
  +
  +  hardware = {
  +    cpu.intel.updateMicrocode = true;
     };
   
     i18n = {
  
positive.code:       options = "--delete-older-than 14";
      };
  
      extraOptions = ''
        auto-optimise-store = true
      '';
  
      package = pkgs.nixUnstable;
  
      useChroot = true;
    };
  
negative.code:   };
  
    nix = {
      binaryCaches = [ https://cache.nixos.org https://hydra.nixos.org ];
      binaryCachePublicKeys = [ "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs=" ];
  
      extraOptions = ''
        auto-optimise-store = true
      '';
  
      gc = {
        automatic = true;
  