diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 05da2a8b7b3d..97fae26c5682 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -10735,6 +10735,12 @@
     githubId = 49885246;
     keys = [ { fingerprint = "6358 EF87 86E0 EF2F 1628  103F BAB5 F165 1C71 C9C3"; } ];
   };
+  ivalery111 = {
+    name = "Valery";
+    email = "ivalery111@gmail.com";
+    github = "ivalery111";
+    githubId = 37245535;
+  };
   ivan = {
     email = "ivan@ludios.org";
     github = "ivan";
diff --git a/pkgs/by-name/so/sobjectizer/package.nix b/pkgs/by-name/so/sobjectizer/package.nix
new file mode 100644
index 000000000000..e46c47baafab
--- /dev/null
+++ b/pkgs/by-name/so/sobjectizer/package.nix
@@ -0,0 +1,60 @@
+{
+  pkgs,
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  fetchpatch,
+  cmake,
+  withStatic ? stdenv.hostPlatform.isStatic,
+  withShared ? !withStatic,
+  buildExamples ? false,
+}:
+
+# Ensure build examples with static library.
+assert buildExamples -> withStatic;
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "sobjectizer";
+  version = "5.8.4";
+
+  src = fetchFromGitHub {
+    owner = "Stiffstream";
+    repo = "sobjectizer";
+    tag = "v.${finalAttrs.version}";
+    hash = "sha256-tIqWgd6TppHfqZk3XHzhG0t+Nn8BQCTP81UD7ls67UE=";
+  };
+
+  patches = [
+    (fetchpatch {
+      name = "tests-do-not-require-static-library.patch";
+      url = "https://github.com/Stiffstream/sobjectizer/commit/10eb34c65ccdaa4fea62d0c4354b83104256370d.patch";
+      hash = "sha256-a2g6jDGDC/y8cmbAD0KtVQKhVS5ZAjKtMhbAUyoQIvg=";
+    })
+  ];
+
+  nativeBuildInputs = [ cmake ];
+
+  cmakeDir = "../dev";
+
+  cmakeFlags = [
+    (lib.cmakeBool "SOBJECTIZER_BUILD_STATIC" withStatic)
+    (lib.cmakeBool "SOBJECTIZER_BUILD_SHARED" withShared)
+    (lib.cmakeBool "BUILD_EXAMPLES" (buildExamples && withStatic))
+    (lib.cmakeBool "BUILD_TESTS" (finalAttrs.doCheck && withShared))
+  ];
+
+  # The tests require the shared library thanks to the patch.
+  doCheck = withShared;
+
+  # Receive semi-automated updates.
+  passthru.updateScript = pkgs.nix-update-script { };
+
+  meta = {
+    homepage = "https://github.com/Stiffstream/sobjectizer/tree/master";
+    changelog = "https://github.com/Stiffstream/sobjectizer/releases/tag/v.${finalAttrs.version}";
+    description = "Implementation of Actor, Publish-Subscribe, and CSP models in one rather small C++ framework";
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.ivalery111 ];
+    platforms = lib.platforms.all;
+  };
+})