anchor.diff:    isExecutable = true;
     libraryHaskellDepends = [
       aeson aeson-pretty base base-unicode-symbols binary bytestring
  -    cairo clock containers dependent-sum directory dlist exceptions
  -    extra fclabels filepath free freer-simple generics-sop ghc-prim
  -    gi-cairo gi-gobject gi-pango gi-pangocairo GLFW-b hashable
  +    cairo clock containers data-default dependent-sum directory dlist
  +    exceptions extra fclabels filepath free freer-simple generics-sop
  +    ghc-prim gi-cairo gi-gobject gi-pango gi-pangocairo GLFW-b hashable
       haskell-gi-base hedgehog hspec hxt JuicyPixels lambdacube-compiler
       lambdacube-gl lambdacube-ir lens lens-sop linear lub metamorphic
       MissingH monadplus MonadRandom mono-traversable monoidal-containers
  
positive.code:     tasty-smallcheck
    ];
    testToolDepends = [ tasty-discover ];
    doHaddock = false;
    doCheck = false;
    description = "Graph-backed visual mind assistant";
    license = stdenv.lib.licenses.agpl3;
  }
  
negative.code: { mkDerivation, aeson, aeson-pretty, base, base-unicode-symbols
  , binary, bytestring, cairo, clock, containers, data-default
  , dependent-sum, directory, dlist, exceptions, extra, fclabels
  , filepath, free, freer-simple, generics-sop, ghc-prim, gi-cairo
  , gi-gobject, gi-pango, gi-pangocairo, GLFW-b, Glob, hashable
  , haskell-gi-base, hedgehog, hspec, hxt, JuicyPixels
  , lambdacube-compiler, lambdacube-gl, lambdacube-ir, lens, lens-sop
  , linear, lub, metamorphic, MissingH, monadplus, MonadRandom
  , mono-traversable, monoidal-containers, mtl, newtype-generics
  , OpenGL, OpenGLRaw, optparse-applicative, parsers, pretty
  , pretty-show, primitive, profunctors, proteaaudio, QuickCheck
  , random, ref-tf, reflex, reflex-glfw, semigroupoids, semigroups
  , singletons, sop-core, spool, stdenv, stm, tasty, tasty-discover
  , tasty-expected-failure, tasty-hedgehog, tasty-hspec, tasty-hunit
  , tasty-quickcheck, tasty-smallcheck, template-haskell, text
  , text-format, text-lens, text-zipper, these, time, transformers
  , trifecta, type-map, TypeCompose, unordered-containers, vect
  , vector, wl-pprint-extras, wl-pprint-text
  }:
  mkDerivation {
    pname = "holotype";
  