anchor.diff:        pkgs.bash
         pkgs.cacert
         pkgs.coreutils
  -      # pkgs.emacsGit
  -      pkgs.emacs
         pkgs.fasd
         pkgs.gawk
         pkgs.gnupg
         pkgs.jq
         pkgs.less
  +      pkgs.libvterm-neovim
         pkgs.nix
         pkgs.nix-zsh-completions
         pkgs.nodejs               # TODO migrate globally installed node packages to Nix
  
positive.code: 
    # The list of packages to be installed
    tools = allPlatforms;
  
  in
    if pkgs.lib.inNixShell
    then pkgs.mkShell
  
negative.code:   allPlatforms = with custom;
      [
        # Customized packages
        emacs
        fzf
        git
        hub
  