nixpkgs/pkgs/development/ocaml-modules/dyn/default.nix

{
  buildDunePackage,
  dune_3,
  ordering,
}:

buildDunePackage {
  pname = "dyn";
  inherit (dune_3) version src;
  duneVersion = "3";

  dontAddPrefix = true;

  propagatedBuildInputs = [ ordering ];

  meta = dune_3.meta // {
    description = "Dynamic type";
  };
}