anchor.diff:    services.skhd.enable = true;
   
     launchd.user.agents.fetch-nixpkgs = {
  -    command = "${pkgs.git}/bin/git -C ~/.nix-defexpr/nixpkgs fetch origin master";
  -    environment.GIT_SSL_CAINFO = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
  +    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;
  
positive.code: 
        pkgs.qes
  
        pkgs.lnl-zsh-completions
      ];
  
    services.khd.enable = true;
  
negative.code: 
    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; }
          ''
  