diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 87c144f0d42d47..6c6a57d341fe5b 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -2052,6 +2052,11 @@
     github = "jluttine";
     name = "Jaakko Luttinen";
   };
+  jmagnusj = {
+    email = "jmagnusj@gmail.com";
+    github = "magnusjonsson";
+    name = "Johan Magnus Jonsson";
+  };
   jmettes = {
     email = "jonathan@jmettes.com";
     github = "jmettes";
diff --git a/pkgs/development/ocaml-modules/opti/default.nix b/pkgs/development/ocaml-modules/opti/default.nix
new file mode 100644
index 00000000000000..7b084e61688b5f
--- /dev/null
+++ b/pkgs/development/ocaml-modules/opti/default.nix
@@ -0,0 +1,18 @@
+{ stdenv, fetchurl, buildDunePackage }:
+
+buildDunePackage rec {
+  pname = "opti";
+  version = "1.0.3";
+
+  src = fetchurl {
+    url = "https://github.com/magnusjonsson/opti/releases/download/${version}/opti-${version}.tbz";
+    sha256 = "ed9ba56dc06e9d2b1bf097964cc65ea37db787d4f239c13d0dd74693f5b50a1e";
+  };
+
+  meta = with stdenv.lib; {
+    description = "DSL to generate fast incremental C code from declarative specifications";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.jmagnusj ];
+    homepage = https://github.com/magnusjonsson/opti;
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index cf06b52c5ba080..dfe90b34b4c4ec 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -552,6 +552,8 @@ let
 
     opam-file-format = callPackage ../development/ocaml-modules/opam-file-format { };
 
+    opti = callPackage ../development/ocaml-modules/opti { };
+
     otfm = callPackage ../development/ocaml-modules/otfm { };
 
     otr = callPackage ../development/ocaml-modules/otr { };