anchor.diff:    thunar = pkgs.xfce.thunar.override { thunarPlugins = [pkgs.xfce.thunar-archive-plugin]; };
   in
   {
  -  # Let Home Manager install and manage itself.
     programs.home-manager.enable = true;
  -
  -  # This value determines the Home Manager release that your
  -  # configuration is compatible with. This helps avoid breakage
  -  # when a new Home Manager release introduces backwards
  -  # incompatible changes.
  -  #
  -  # You can update Home Manager without changing this value. See
  -  # the Home Manager release notes for a list of state version
  -  # changes in each release.
     home.stateVersion = "20.03";
   
     nixpkgs.config.allowUnfree = true;
  
positive.code:     unstable.obs-studio
      xclip
      xfce.xfce4-screenshooter
    ];
  
    home.activation.stow = dag.entryAfter [ "writeBoundary" ] ''
  
negative.code:     fira-code-symbols
      firefox
      glibcLocales
      i3lock
      i3status
      kitty
      lastpass-cli
      networkmanagerapplet
      noto-fonts
      noto-fonts-cjk
      noto-fonts-emoji
  