anchor.diff:  
         pkgs.qes
   
  +      pkgs.kitty
         pkgs.lnl-zsh-completions
  +      pkgs.lnl-git-statusbar
       ];
   
     services.khd.enable = true;
  
positive.code: 
    nixpkgs.overlays = [
      (self: super: {
        lnl-zsh-completions = super.runCommandNoCC "lnl-zsh-completions-0.0.0"
          { preferLocalBuild = true; }
          ''
  
negative.code:   services.skhd.enable = true;
  
    launchd.user.agents.fetch-nixpkgs = {
      command = "${pkgs.git}/bin/git -C /src/nixpkgs fetch origin master";
      environment.SSL_CERT_FILE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
      serviceConfig.KeepAlive = false;
      serviceConfig.ProcessType = "Background";
      serviceConfig.StartInterval = 360;
  