diff --git a/host/bachtel/default.nix b/host/bachtel/default.nix
index 2368230..79a5996 100644
--- a/host/bachtel/default.nix
+++ b/host/bachtel/default.nix
@@ -16,6 +16,28 @@
   #   extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
   # };
 
+  services.home-assistant = {
+    enable = true;
+    package = pkgs.home-assistant.override {
+      extraPackages = python3Packages: with python3Packages; [ psycopg2 ];
+      extraComponents = [ "default_config" "esphome" "met" ];
+    };
+    openFirewall = true;
+    extraComponents = [ "xiaomi_miio" ];
+    config = {
+      homeassistant = {
+        name = "Home";
+        latitude = "!secret latitude";
+        longitude = "!secret longitude";
+        elevation = "!secret elevation";
+        unit_system = "metric";
+        time_zone = "UTC";
+      };
+      frontend = { themes = "!include_dir_merge_named themes"; };
+      http = { };
+    };
+  };
+
   # This value determines the NixOS release from which the default
   # settings for stateful data, like fi:le locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave