anchor.diff:  
     nixpkgs.overlays = [
       (self: super: {
  +      lnl-git-statusbar = super.writeScriptBin "git-statusbar" ''
  +        #!${super.stdenv.shell}
  +        set -e
  +        export PATH=${lib.makeBinPath [super.coreutils super.gawk super.git]}
  +
  +        fork=$(git "$@" log --format=format:%h origin/master...lnl/master 2> /dev/null | awk 'END {print NR}')
  +        head=$(git "$@" log --format=format:%h origin/master...HEAD 2> /dev/null | awk 'END {print NR}')
  +        echo "[$head/$fork] $(git "$@" log --oneline -1 origin/master | head -1)"
  +        git "$@" rev-parse origin/master
  +      '';
  +
         lnl-zsh-completions = super.runCommandNoCC "lnl-zsh-completions-0.0.0"
           { preferLocalBuild = true; }
           ''
  
positive.code: 
        pkgs.qes
  
        pkgs.lnl-zsh-completions
      ];
  
    services.khd.enable = 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;
  