anchor.diff:        url = https://patch-diff.githubusercontent.com/raw/reflex-frp/reflex/pull/448.patch;
         sha256 = "0a8gcq9g8dyyafkvs54mi3fnisff20r0x0qzmhxcp9md61nkf7gq";
       })
  -  ];
  +  ]));
   
     # 2020-11-19: jailbreaking because of pretty-simple bound out of date
     # https://github.com/kowainik/stan/issues/408
  
positive.code:   # https://github.com/adnelson/semver-range/issues/15
    semver-range = dontCheck super.semver-range;
  
    dependent-sum-aeson-orphans = appendPatch super.dependent-sum-aeson-orphans (pkgs.fetchpatch {
      # 2020-11-18: https://github.com/obsidiansystems/dependent-sum-aeson-orphans/pull/9
      # Bump version bounds for ghc 8.10
  
negative.code:   # base upper bound is incompatible with ghc 8.10
    neuron = doJailbreak super.neuron;
  
    reflex = dontCheck (doJailbreak (appendPatches super.reflex [
      # https://github.com/reflex-frp/reflex/pull/444
      # Fixes for ghc 8.10
      (pkgs.fetchpatch {
  