anchor.diff:        vimrcConfig.vam.knownPlugins = vimPlugins;
         vimrcConfig.vam.pluginDictionaries = [
             # the plugin list form ~/.vim-scripts turned into nix format added to
  -          # the buffer created by the nix#ExportPluginsForNix 
  +          # the buffer created by the nix#ExportPluginsForNix
         ];
       }
   
  
positive.code:   in writeText "vimrc" ''
    " minimal setup, generated by NIX
    set nocompatible
    filetype indent plugin on | syn on
  
    ${vamImpl}
    ${pathogenImpl}
    ${vundleImpl}
    ${neobundleImpl}
  
    ${customRC}
    '';
  
negative.code: 
  CONTRIBUTING AND CUSTOMIZING
  ============================
  The example file pkgs/misc/vim-plugins/default.nix provides both:
  * manually mantained plugins
  * plugins created by VAM's nix#ExportPluginsForNix implementation
  
  I highly recommend to lookup vim plugin attribute names at the [vim-pi] project
  