anchor.diff:    # https://github.com/adnelson/semver-range/issues/15
     semver-range = dontCheck super.semver-range;
   
  +  # https://github.com/obsidiansystems/dependent-sum/issues/55
  +  dependent-sum = doJailbreak super.dependent-sum;
  +
     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
  
positive.code:   # base upper bound is incompatible with ghc 8.10
    neuron = doJailbreak super.neuron;
  
    reflex = appendPatches super.reflex [
      # https://github.com/reflex-frp/reflex/pull/444
      # Fixes for ghc 8.10
      (pkgs.fetchpatch {
  
negative.code:       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    # 2020-11-19: jailbreaking because of pretty-simple bound out of date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
  