anchor.diff:        regex-posix
         regex-tdfa
         shakespeare
  -      snap
  -      snap-core
  -      snap-loader-dynamic
  -      snap-loader-static
  -      snap-server
  -      snaplet-postgresql-simple
  -      snaplet-sass
         split
         text
         time
  
positive.code:     devEnv = buildEnv {
        name = "devEnv";
        paths = [
          phocid
  
          myHaskellEnv
          cabal2nix
  
  
negative.code:       extra
        filepath
        hakyll
        hscurses
        hsexif
        hspec
        hspec-core
        io-streams
        lens
        mtl
  