anchor.diff:  
         # useful libraries...
         # MonadCatchIO-transformers # Dependency problem
  +      composite-base
  +      # composite-aeson
  +      servant
  +      servant-server
         Crypto
         HaXml
         HandsomeSoup
  
positive.code:         psc-package
          ripgrep
          tmux
          watch
          wget
  
  
negative.code:       regex-compat
        regex-posix
        regex-tdfa
        safe
        scotty
        shakespeare
        snap
  