diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index a6fcda5ce9ef..b0c4e245e52c 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -2623,6 +2623,12 @@
       fingerprint = "F549 3B7F 9372 5578 FDD3  D0B8 A1BC 8428 323E CFE8";
     }];
   };
+  br337 = {
+    email = "brian.porumb@proton.me";
+    github = "br337";
+    githubId = 49288125;
+    name = "Brian Porumb";
+  };
   bradediger = {
     email = "brad@bradediger.com";
     github = "bradediger";
diff --git a/pkgs/by-name/nl/nlohmann_json_schema_validator/package.nix b/pkgs/by-name/nl/nlohmann_json_schema_validator/package.nix
new file mode 100644
index 000000000000..a6317b1f7b28
--- /dev/null
+++ b/pkgs/by-name/nl/nlohmann_json_schema_validator/package.nix
@@ -0,0 +1,30 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, nlohmann_json
+, cmake
+}:
+stdenv.mkDerivation (finalAttrs: {
+  pname = "nlohmann_json_schema_validator";
+  version = "2.3.0";
+
+  outputs = [ "out" "dev" ];
+
+  src = fetchFromGitHub {
+    owner = "pboettch";
+    repo = "json-schema-validator";
+    rev = finalAttrs.version;
+    hash = "sha256-Ybr5dNmjBBPTYPvgorJ6t2+zvAjxYQISWXJmgUVHBVE=";
+  };
+
+  buildInputs = [ nlohmann_json ];
+  nativeBuildInputs = [ cmake ];
+
+  meta = {
+    description = "JSON schema validator for JSON for Modern C++";
+    homepage = "https://github.com/pboettch/json-schema-validator";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ br337 ];
+    platforms = lib.platforms.all;
+  };
+})