anchor.diff:      # top-level packages that depend on haskellPackages
       inherit (pkgsPlatforms)
         agda
  +      arion
         bench
         bustle
         blucontrol
         cabal-install
         cabal2nix
         cachix
  +      carp
         cedille
  +      client-ip-echo
         darcs
  +      dconf2nix
         dhall
         dhall-bash
         dhall-docs
  
positive.code:       jl
        koka
        krank
        madlang
        matterhorn
        neuron-notes
        niv
        nix-delegate
  
negative.code:       nix-diff
        nix-linter
        nix-output-monitor
        nix-script
        nix-tree
        nixfmt
        nota
        ormolu
        pandoc
        pakcs
        petrinizer
        place-cursor-at
        pinboard-notes-backup
        pretty-simple
        shake
        shellcheck
        sourceAndTags
        spacecookie
        spago
        splot
        stack
        stack2nix
  