anchor.diff:            description = "Cardano SL - the SSC class";
             license = stdenv.lib.licenses.mit;
           }) {};
  -      cardano-sl-tools = callPackage ({ Chart, Chart-diagrams, Glob, MonadRandom, QuickCheck, aeson, ansi-wl-pprint, array, async, attoparsec, base, bytestring, cardano-report-server, cardano-sl, cardano-sl-core, cardano-sl-db, cardano-sl-infra, cardano-sl-lrc, cardano-sl-ssc, cardano-sl-txp, containers, cpphs, cryptonite, data-default, directory, ed25519, ether, fgl, filepath, foldl, formatting, graphviz, kademlia, lens, log-warper, mkDerivation, mtl, node-sketch, optparse-applicative, parsec, pipes, pipes-bytestring, pipes-interleave, pipes-safe, process, purescript-bridge, random, random-shuffle, serokell-util, servant, servant-multipart, servant-server, servant-swagger, servant-swagger-ui, stdenv, stm, string-qq, swagger2, system-filepath, tar, text, text-format, time, time-units, universum, unix-compat, unordered-containers, vector, wreq }:
  +      cardano-sl-tools = callPackage ({ Chart, Chart-diagrams, Glob, MonadRandom, QuickCheck, aeson, ansi-wl-pprint, array, async, attoparsec, base, bytestring, cardano-report-server, cardano-sl, cardano-sl-core, cardano-sl-db, cardano-sl-infra, cardano-sl-lrc, cardano-sl-ssc, cardano-sl-txp, containers, cpphs, cryptonite, data-default, directory, ed25519, ether, fgl, filepath, foldl, formatting, graphviz, kademlia, lens, log-warper, mkDerivation, mtl, neat-interpolation, node-sketch, optparse-applicative, parsec, pipes, pipes-bytestring, pipes-interleave, pipes-safe, process, purescript-bridge, random, random-shuffle, serokell-util, servant, servant-multipart, servant-server, servant-swagger, servant-swagger-ui, stdenv, stm, swagger2, system-filepath, tar, text, text-format, time, time-units, universum, unix-compat, unordered-containers, vector, wreq }:
         mkDerivation {
             pname = "cardano-sl-tools";
             version = "0.5.1";
  
positive.code:             lens
              lifted-base
              log-warper
              monad-control
              mtl
              neat-interpolation
  
negative.code:           description = "Cardano SL - Tools";
            license = stdenv.lib.licenses.mit;
          }) {};
        cardano-sl-txp = callPackage ({ QuickCheck, aeson, base, bytestring, cardano-sl-core, cardano-sl-db, cardano-sl-infra, conduit, containers, cpphs, data-default, ekg-core, ether, formatting, generic-arbitrary, hashable, lens, lifted-base, log-warper, memory, mkDerivation, monad-control, mtl, neat-interpolation, node-sketch, plutus-prototype, resourcet, rocksdb-haskell, serokell-util, stdenv, stm, tagged, template-haskell, text, text-format, time-units, transformers, universum, unordered-containers, vector }:
        mkDerivation {
            pname = "cardano-sl-txp";
            version = "0.5.1";
  