anchor.diff:        pkgs.docker-machine
         pkgs.docker-machine-xhyve
         pkgs.cdecl # Explains c declarations (cdecl explain "const struct S** s")
  -      pkgs.texlive.combined.scheme-full
  +      #pkgs.texlive.combined.scheme-full
         pkgs.emacs
         myHunspell
         pkgs.dos2unix
         pkgs.tmux
  +      #pkgs.nodePackages.relaxedjs
       ];
  +
  +  nix.nixPath =
  +  [ # Use local nixpkgs checkout instead of channels.
  +    "darwin-config=$HOME/.nixpkgs/darwin-configuration.nix"
  +    "darwin=$HOME/Projects/nix-darwin"
  +    "nixpkgs=$HOME/Projects/nixpkgs"
  +  ];
   
     # Auto upgrade nix package and the daemon service.
     services.nix-daemon.enable = true;
  
positive.code:         alias zz='fasd_cd -d -i' # cd with interactive selection
          alias v='f -e vim' # quick opening files with vim
          alias vi='vim'           # alias vi to vim
          alias drsl='NIX_PATH=darwin=$HOME/Projects/nix-darwin:darwin-config=$HOME/.nixpkgs/darwin-configuration.nix:$NIX_PATH darwin-rebuild switch' # switch with local repo
        '';
  
      # environment variables
  
negative.code:   # List packages installed in system profile. To search by name, run:
    # $ nix-env -qaP | grep wget
    environment.systemPackages =
      [ pkgs.fzf
        pkgs.gnupg
        pkgs.ripgrep
        pkgs.neovim
  