ocamlPackages.janeStreet_0_15: remove

            import ../development/ocaml-modules/janestreet {

            };

        janeStreet_0_15 =

          (lib.makeScope self.newScope (

            self': with self'; {

              # ocamlPackages that janestreet v0.15 packages depend on.

              jsDeps =

                let

                  uri-sexp = self.uri-sexp.override { inherit (self') ppx_sexp_conv sexplib0; };

                  cohttp = self.cohttp.override {

                    inherit (self') ppx_sexp_conv;

                    inherit uri-sexp;

                  };

                  ipaddr-sexp = self.ipaddr-sexp.override { inherit (self') ppx_sexp_conv; };

                  conduit = self.conduit.override {

                    inherit (self') ppx_sexp_conv sexplib;

                    inherit ipaddr-sexp;

                  };

                  conduit-async = self.conduit-async.override {

                    inherit (self')

                      async

                      ppx_sexp_conv

                      ppx_here

                      core

                      sexplib

                      async_ssl

                      ;

                    inherit conduit ipaddr-sexp;

                  };

                in

                {

                  inherit (self)

                    dune-configurator

                    alcotest

                    re

                    num

                    octavius

                    uutf

                    ounit

                    ctypes

                    ctypes-foreign

                    ;

                  ppxlib = self.ppxlib.override { inherit (self') stdio; };

                  cohttp-async = self.cohttp-async.override {

                    inherit (self')

                      ppx_sexp_conv

                      base

                      async

                      async_kernel

                      async_unix

                      core_unix

                      sexplib0

                      core

                      ;

                    inherit uri-sexp cohttp conduit-async;

                  };

                  janePackage = callPackage ../development/ocaml-modules/janestreet/janePackage_0_15.nix { };

                };

              janeStreet = import ../development/ocaml-modules/janestreet/0.15.nix {

                self = self' // jsDeps;

                inherit ocaml;

                inherit (pkgs)

                  bash

                  fetchpatch

                  fzf

                  lib

                  openssl

                  zstd

                  ;

              };

            }

          )).overrideScope

            liftJaneStreet;

        javalib = callPackage ../development/ocaml-modules/javalib { };

        jingoo = callPackage ../development/ocaml-modules/jingoo { };