diff --git a/pkgs/servers/home-assistant/custom-components/govee-lan/default.nix b/pkgs/servers/home-assistant/custom-components/govee-lan/default.nix
index 60c58bb85850..f5ab54f19329 100644
--- a/pkgs/servers/home-assistant/custom-components/govee-lan/default.nix
+++ b/pkgs/servers/home-assistant/custom-components/govee-lan/default.nix
@@ -1,7 +1,10 @@
 { lib
 , buildHomeAssistantComponent
 , fetchFromGitHub
+, fetchpatch2
 , govee-led-wez
+, pytest-homeassistant-custom-component
+, pytestCheckHook
 }:
 
 buildHomeAssistantComponent {
@@ -16,19 +19,32 @@ buildHomeAssistantComponent {
     hash = "sha256-ZhrxEPBEi+Z+2ZOAQ1amhO0tqvhM6tyFQgoRIVNDtXY=";
   };
 
+  patches = [
+    (fetchpatch2 {
+      url = "https://github.com/wez/govee-lan-hass/commit/b4cecac5ae00d95c49fcfe3bbfc405cbfc5dd84c.patch";
+      hash = "sha256-+MPO4kxxE1nZ/+sIY7v8WukHMrVowgMMBVfRDw2uv8o=";
+    })
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace-fail "--cov=custom_components" ""
+  '';
+
   dontBuild = true;
 
   propagatedBuildInputs = [
     govee-led-wez
   ];
 
-  # enable when pytest-homeassistant-custom-component is packaged
+  # AttributeError: 'async_generator' object has no attribute 'config'
   doCheck = false;
 
-  # nativeCheckInputs = [
-  #   pytest-homeassistant-custom-component
-  #   pytestCheckHook
-  # ];
+  nativeCheckInputs = [
+    pytest-homeassistant-custom-component
+    pytestCheckHook
+  ];
+
 
   meta = with lib; {
     description = "Control Govee lights via the LAN API from Home Assistant";
diff --git a/pkgs/servers/home-assistant/default.nix b/pkgs/servers/home-assistant/default.nix
index 3d64bf38457d..0aca399b8931 100644
--- a/pkgs/servers/home-assistant/default.nix
+++ b/pkgs/servers/home-assistant/default.nix
@@ -455,6 +455,8 @@ let
       # internal python packages only consumed by home-assistant itself
       home-assistant-frontend = self.callPackage ./frontend.nix { };
       home-assistant-intents = self.callPackage ./intents.nix { };
+      homeassistant = self.toPythonModule home-assistant;
+      pytest-homeassistant-custom-component = self.callPackage ./pytest-homeassistant-custom-component.nix { };
     })
   ];
 
diff --git a/pkgs/servers/home-assistant/pytest-homeassistant-custom-component.nix b/pkgs/servers/home-assistant/pytest-homeassistant-custom-component.nix
new file mode 100644
index 000000000000..c3c9deec7f22
--- /dev/null
+++ b/pkgs/servers/home-assistant/pytest-homeassistant-custom-component.nix
@@ -0,0 +1,58 @@
+{
+  lib,
+  buildPythonPackage,
+  pythonOlder,
+  fetchFromGitHub,
+  setuptools,
+  aiohttp,
+  bcrypt,
+  freezegun,
+  homeassistant,
+  pytest-asyncio,
+  pytest-socket,
+  requests-mock,
+  syrupy,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "pytest-homeassistant-custom-component";
+  version = "0.13.147";
+  pyproject = true;
+
+  disabled = pythonOlder "3.12";
+
+  src = fetchFromGitHub {
+    owner = "MatthewFlamm";
+    repo = "pytest-homeassistant-custom-component";
+    rev = "refs/tags/${version}";
+    hash = "sha256-FivgP0tKmu9QKPSVU9c/3SNduyKoSeAquHysdHSs11E=";
+  };
+
+  build-system = [ setuptools ];
+
+  pythonRemoveDeps = true;
+
+  dependencies = [
+    aiohttp
+    bcrypt
+    freezegun
+    homeassistant
+    pytest-asyncio
+    pytest-socket
+    requests-mock
+    syrupy
+  ];
+
+  pythonImportsCheck = [ "pytest_homeassistant_custom_component.plugins" ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  meta = {
+    changelog = "https://github.com/MatthewFlamm/pytest-homeassistant-custom-component/blob/${src.rev}/CHANGELOG.md";
+    description = "Package to automatically extract testing plugins from Home Assistant for custom component testing";
+    homepage = "https://github.com/MatthewFlamm/pytest-homeassistant-custom-component";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ dotlambda ];
+  };
+}