{ sources ? import ./sources.nix, version ? "git" }:
self: super:
let lib = import ./lib.nix self;
in {
  ocamlPackages = super.ocaml-ng.ocamlPackages_4_09.overrideScope'
    (builtins.foldl' self.lib.composeExtensions (_: _: { }) [
      (oself: osuper:
        (lib.traverseOPAMRepo (builtins.fetchTarball
          "https://github.com/ocaml/opam-repository/archive/master.tar.gz") oself osuper)
        // osuper)
      (lib.traverseOPAMRepo ../../tezos-opam-repository)
      (oself: osuper:
        with oself; {
          ocamlfind = findlib;
          lwt = lwt4;
          bigstring-unix = null;
        })
    ]);
}
# (oself: osuper:
#   let
#     callTezosPackage = name: args:
#       oself.callOPAMPackage "${sources.tezos}/src/lib_${
#         builtins.replaceStrings [ "-" ] [ "_" ] name
#       }" ({
#         pname = "tezos-${name}";
#         version = sources.tezos.rev;
#       });
#     tezos = builtins.listToAttrs (map (name: {
#       name = "tezos-${name}";
#       value = callTezosPackage name { } { };
#     }) [
#       "base"
#       "event-logging"
#       "micheline"
#       "clic"
#       "rpc"
#       "error-monad"
#       "stdlib"
#       "crypto"
#     ]);
#   in tezos // {
#     lwt = oself.lwt4;
#     bigstring = oself.callOPAMPackage sources.bigstring {
#       opamFile = "bigstring.opam";
#       buildPhase = "dune build -p bigstring";
#     } { bigstring-unix = null; };
#     hidapi = oself.callOPAMPackage sources.hidapi {
#       version = "1.1.1";
#       extraBuildInputs = [ self.pkg-config ];
#     } { conf-hidapi = self.hidapi; };
#     crowbar = oself.callOPAMPackage sources.crowbar {
#       pname = "crowbar";
#       version = "0.1";
#     } { };
#     afl-persistent = oself.callOPAMPackage sources.ocaml-afl-persistent {
#       pname = "afl-persistent";
#       version = "1.1";
#     } { };
#     blake2 = oself.callOPAMPackage sources.blake2 {
#       pname = "blake2";
#       version = "0.2";
#     } { };
#     hacl = oself.callOPAMPackage sources.hacl {
#       pname = "hacl";
#       version = "0.1";
#     } { };
#     xmldiff = oself.callPackage
#       ({ stdenv, autoreconfHook, ocaml, findlib, xmlm }:
#         stdenv.mkDerivation {
#           pname = "xmldiff";
#           version = "0.5.0";
#           src = sources.xmldiff;
#           preInstall =
#             "mkdir -p $out/lib/ocaml/${oself.ocaml.version}/site-lib";
#           nativeBuildInputs = [ autoreconfHook ocaml findlib ];
#           buildInputs = [ xmlm findlib ];
#         }) { };
#     json-data-encoding = oself.callOPAMPackage sources.json-data-encoding {
#       opamFile = "json-data-encoding.opam";
#       pname = "json-data-encoding";
#       version = "0.8";
#       extraBuildInputs = [ oself.crowbar ];
#     } { };
#     json-data-encoding-bson =
#       oself.callOPAMPackage sources.json-data-encoding {
#         opamFile = "json-data-encoding-bson.opam";
#         pname = "json-data-encoding-bson";
#         version = "0.8";
#       } { };
#     data-encoding = oself.callOPAMPackage sources.data-encoding {
#       pname = "data-encoding";
#       version = "0.0.0";
#     } { };
#     secp256k1-internal = oself.callOPAMPackage sources.secp256k1-internal {
#       pname = "secp256k1-internal";
#       version = "0.1.0";
#     } { conf-gmp = self.gmp; };
#     uecc = oself.callOPAMPackage sources.uecc {
#       pname = "uecc";
#       version = "0.1";
#     } { };
#     resto = oself.callOPAMPackage sources.resto {
#       opamFile = "resto.opam";
#       pname = "resto";
#       version = "0.4";
#     } { };
#     resto-directory = oself.callOPAMPackage sources.resto {
#       opamFile = "resto-directory.opam";
#       pname = "resto-directory";
#       version = "0.4";
#     } { resto-json = null; };
#     lwt-canceler = oself.callOPAMPackage sources.lwt-canceler {
#       pname = "lwt-canceler";
#       version = "0.2";
#     } { };
#     simple-utils =
#       oself.callOPAMPackage ../vendors/ligo-utils/simple-utils {
#         pname = "simple-utils";
#         version = "0.1";
#       } { };
#     michelson-parser = oself.callOPAMPackage
#       ../vendors/ligo-utils/tezos-utils/michelson-parser {
#         pname = "michelson-parser";
#         version = "0.0.0";
#       } { ocamlfind = oself.findlib; };
#     tezos-tooling = oself.callOPAMPackage "${sources.tezos}/src/tooling" {
#       pname = "tezos-tooling";
#       version = sources.tezos.rev;
#     } { };
#     tezos-protocol-environment = oself.callOPAMPackage
#       "${sources.tezos}/src/lib_protocol_environment" {
#         pname = "tezos-protocol-environment";
#         opamFile = "tezos-protocol-environment.opam";
#         version = sources.tezos.rev;
#       } { };
#     tezos-memory-proto-alpha =
#       oself.callOPAMPackage ../vendors/ligo-utils/memory-proto-alpha {
#         pname = "tezos-memory-proto-alpha";
#         version = "0.0.0";
#       } { };
#     tezos-stdlib-unix =
#       oself.callOPAMPackage "${sources.tezos}/src/lib_stdlib_unix" {
#         pname = "tezos-stdlib-unix";
#         version = sources.tezos.rev;
#         extraBuildInputs = [ oself.fmt ];
#       } { conf-libev = self.libev; };
#     tezos-protocol-alpha = null;
#     tezos-protocol-006-PsCARTHA = null;
#     tezos-protocol-environment-sigs = null;
#     tezos-data-encoding = null;
#     tezos-utils = oself.callOPAMPackage ../vendors/ligo-utils/tezos-utils {
#       pname = "tezos-utils";
#       version = "0.1";
#     } { };
#     proto-alpha-utils =
#       oself.callOPAMPackage ../vendors/ligo-utils/proto-alpha-utils {
#         pname = "proto-alpha-utils";
#         version = "0.1";
#       } { };
#     terminal_size = oself.callOPAMPackage sources.terminal_size {
#       pname = "terminal_size";
#       version = "0.1.4";
#     } { };
#     ligo = oself.callOPAMPackage ../. { version = "0.1"; } {
#       ocamlfind = oself.findlib;
#     };
#   });
# }