diff --git a/pkgs/development/python-modules/greenwavereality/default.nix b/pkgs/development/python-modules/greenwavereality/default.nix
deleted file mode 100644
index b49b9cd01a94..000000000000
--- a/pkgs/development/python-modules/greenwavereality/default.nix
+++ /dev/null
@@ -1,40 +0,0 @@
-{
-  lib,
-  buildPythonPackage,
-  fetchPypi,
-  setuptools,
-  requests,
-  xmltodict,
-  urllib3,
-}:
-
-buildPythonPackage rec {
-  pname = "greenwavereality";
-  version = "0.5.1";
-  pyproject = true;
-
-  src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-bNTO9qHoOe3A7TYiUwLBVq4eWyGoIfCoguizM1hKk/Y=";
-  };
-
-  build-system = [ setuptools ];
-
-  dependencies = [
-    requests
-    xmltodict
-    urllib3
-  ];
-
-  # Module has no tests
-  doCheck = false;
-
-  pythonImportsCheck = [ "greenwavereality" ];
-
-  meta = {
-    description = "Control of Greenwave Reality Lights";
-    homepage = "https://github.com/dfiel/greenwavereality";
-    license = lib.licenses.mit;
-    maintainers = [ lib.maintainers.jamiemagee ];
-  };
-}
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 9010ec4ff87b..2b9c33ab593d 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -267,6 +267,7 @@ mapAliases {
   gradient_statsd = throw "'gradient_statsd' has been renamed to/replaced by 'gradient-statsd'"; # Converted to throw 2025-10-29
   grapheme = throw "'grapheme' has been removed as it is unmaintained upstream. Consider using 'graphemeu' instead."; # Converted to throw 2025-12-22
   grappelli_safe = throw "'grappelli_safe' has been renamed to/replaced by 'grappelli-safe'"; # Converted to throw 2025-10-29
+  greenwavereality = throw "'greenwavereality' has been removed because Home Assistant dropped support"; # Added 2026-06-04
   groestlcoin_hash = throw "'groestlcoin_hash' has been renamed to/replaced by 'groestlcoin-hash'"; # Converted to throw 2025-10-29
   grpc_google_iam_v1 = throw "'grpc_google_iam_v1' has been renamed to/replaced by 'grpc-google-iam-v1'"; # Converted to throw 2025-10-29
   gtimelog = throw "'gtimelog' has been renamed to/replaced by 'gtimelog'"; # Converted to throw 2025-10-29
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f242801c9c0b..49843885a9af 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6919,8 +6919,6 @@ self: super: with self; {
 
   greenplanet-energy-api = callPackage ../development/python-modules/greenplanet-energy-api { };
 
-  greenwavereality = callPackage ../development/python-modules/greenwavereality { };
-
   gremlinpython = callPackage ../development/python-modules/gremlinpython { };
 
   grep-ast = callPackage ../development/python-modules/grep-ast { };