anchor.diff:  
         desktopManager = {
           gnome3.enable = true;
  -        xterm.enable = false;
         };
  -      displayManager.gdm.enable = true;
       };
     };
   
  
positive.code:     enableExtensionPack = true;
      enableHardening = false; #needed for 3D acceleration
    };
  
    virtualisation.docker = {
      enable = true;
  
negative.code:   ];
  
    networking.hostName = "skinnyv";
    # gsconnect
    networking.firewall.allowedTCPPortRanges = [ { from = 1716; to = 1764; }  ];
    networking.firewall.allowedUDPPortRanges = [ { from = 1716; to = 1764; }  ];
    
    i18n.defaultLocale = "en_GB.UTF-8";
  
    users.users.cyryl = {
      isNormalUser = true;
      extraGroups = [ "wheel" "networkmanager" "video" "scanner" "lp" "docker" "vboxusers"]; 
        packages = with pkgs; [
          firefox chromium terminator zsh keepass fontconfig go nodejs rustup gcc gdb 
          binutils xclip pkgconfig veracrypt gitAndTools.diff-so-fancy
          gnome3.gnome-shell-extensions chrome-gnome-shell gnomeExtensions.clipboard-indicator 
          gnomeExtensions.caffeine gnomeExtensions.no-title-bar gnomeExtensions.gsconnect
          openjdk11 gimp restic glxinfo discord steam vscode 
          zoom-us
          nodejs-10_x hugo mercurial terraform libreoffice
        ];
      uid = 1000;
      shell = pkgs.zsh;
  