anchor.diff:    nixpkgs.config.allowUnfree = true;
   
     environment.systemPackages = with pkgs; [
  -    (openfortivpn.overrideAttrs (oldAttrs: rec {
  -      pname = "openfortivpn";
  -      version = "1.8.1";
  -      name = "${pname}-${version}";
  -
  -      src = fetchFromGitHub {
  -        owner = "adrienverge";
  -        repo = "${pname}";
  -        rev = "967d4819475d4f11179960ee50811ec52cd1849c";
  -        sha256 = "073ywn0m1kxwswlx6avb8yp642h1886kaiiih16j00qf2kyw4if9";
  -      };
  -    }))
       awscli
       kubectl
       minikube
  
positive.code:     openssl
      slack
      unstable.leiningen
    ];
  
    # Enable Java.
  
negative.code:   #   ];
    # };
  
    virtualisation = {
      # Enable Docker.
      docker.enable = true;
  
      # Enable VirtualBox.
      virtualbox.host.enable = true;
    };
  
    # Added user to groups.
    users.users.thiagoko.extraGroups = [ "docker" "vboxusers" ];
  
    services = {
      # Enable CUPS.
      printing = {
        enable = true;
        drivers = [ pkgs.postscript-lexmark ];
      };
    };
  
    # Enable Emacs daemon, since Spacemacs takes quite a long time to start.
    systemd.user.services.emacs = {
  