anchor.diff:        curl
         ipcalc
         nmap
  -      openvpn
         tcpdump
         wget
         bind
  
positive.code:       keybase
        kbfs
        openssl
        gnupg
      ];
    };
  
negative.code:       enableAdobeFlashDRM = true;
      };
  
      packageOverrides = pkgs : {
        base-env = pkgs.buildEnv {
          name = "base-env";
          paths = base-tools;
        };
  
        dev-env = pkgs.buildEnv {
          name = "dev-env";
          paths =
            base-tools
            ++ security-tools
            ++ desktop-apps
            ++ x11-tools
            ++ go-env
            ++ node-env
            ++ ocaml-env
  