anchor.diff:  
       pandoc
   
  -#    ( lib.overrideDerivation slack (attrs: {
  -#      name = "slack-2.0.3";
  -#        src = fetchurl {
  -#        url = "https://slack-ssb-updates.global.ssl.fastly.net/linux_releases/slack-desktop-2.0.3-amd64.deb";
  -#        sha256 = "0pp8n1w9kmh3pph5kc6akdswl3z2lqwryjg9d267wgj62mslr3cg";
  -#        name = "slack-desktop-2.0.3-amd64.deb";
  -#      };
  -#    }))
       slack
   
       python
  
positive.code:     };
  
      kernelPackages = pkgs.linuxPackages_latest;
  #    kernelPackages = pkgs.linuxPackages;
  
      loader = {
        systemd-boot.enable = true;
  
negative.code:     iotop
      oh-my-zsh
      parcellite
      #sublime3
      (import nixpkgs/sublime3-dev.nix)
      tcpdump
      unzip
      xclip
  