many changes and more modularizing

hosts/fw-new/modules/home-assistant/custom-components/hacs.nix

@@ -0,0 +1,27 @@
+{ lib
+, buildHomeAssistantComponent
+, fetchFromGitHub
+}:
+
+buildHomeAssistantComponent rec {
+  owner = "hacs";
+  domain = "hacs";
+  version = "2.0.1"; # Replace with the latest version
+
+  src = fetchFromGitHub {
+    owner = "hacs";
+    repo = "integration";
+    rev = version;
+    sha256 = ""; # You'll need to fill this in
+  };
+
+  propagatedBuildInputs = [
+    # Add any required dependencies here
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/hacs/integration";
+    license = licenses.mit;
+    description = "HACS (Home Assistant Community Store)";
+  };
+}