push sheeet

pkgs/development/ocaml-modules/melange-json/default.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  fetchFromGitHub,
+  buildDunePackage,
+  yojson,
+  melange,
+  ppxlib,
+}:
+
+buildDunePackage rec {
+  pname = "melange-json";
+  version = "2.0.0";
+  src = fetchFromGitHub {
+    owner = "melange-community";
+    repo = "melange-json";
+    tag = version;
+    hash = "sha256-vgcvPRc2vEHE1AtHyttvs1T0LcoeTOFfmPUCz95goT0=";
+  };
+
+  nativeBuildInputs = [ melange ];
+  propagatedBuildInputs = [ melange ];
+  doCheck = false; # Fails due to missing "melange-jest", which in turn fails in command "npx jest"
+  meta = {
+    description = "Compositional JSON encode/decode library and PPX for Melange and OCaml";
+    homepage = "https://github.com/melange-community/melange-json";
+    license = lib.licenses.lgpl3;
+    maintainers = [
+      lib.maintainers.GirardR1006
+      lib.maintainers.vog
+    ];
+  };
+}

pkgs/development/ocaml-modules/melange-json/native.nix

@@ -0,0 +1,20 @@
+{
+  buildDunePackage,
+  melange-json,
+  ppxlib,
+  yojson,
+}:
+
+buildDunePackage {
+  pname = "melange-json-native";
+  inherit (melange-json) version src;
+  minimalOCamlVersion = "4.12";
+  propagatedBuildInputs = [
+    ppxlib
+    yojson
+  ];
+  doCheck = false; # Fails due to missing "melange-jest", which in turn fails in command "npx jest"
+  meta = melange-json.meta // {
+    description = "Compositional JSON encode/decode PPX for OCaml";
+  };
+}