feat: minimal home assistant setup

hosts/ws-home/configuration.nix

@@ -18,11 +18,11 @@
   # Matter controller
   services.matterjs-server = {
     enable = true;
-    listenAddress = "::";
+    listenAddress = "127.0.0.1";
-    openFirewall = true;
   };
   modules.impermanence.directories = [
     "/var/lib/private/matterjs-server"
+    "/var/lib/hass"
   ];
   systemd.tmpfiles.rules = [
     "d /var/lib/private 0700 root root -"
@@ -32,6 +32,18 @@
     5540 # Matter
   ];
 
+  # Home Assistant, only integrating with matterjs-server
+  services.home-assistant = {
+    enable = true;
+    extraComponents = [ "matter" ];
+    config = {
+      homeassistant = { };
+    };
+  };
+  networking.firewall.allowedTCPPorts = [
+    8123 # Home Assistant
+  ];
+
   # Set up hardware
   imports = [ ./hardware-configuration.nix ];
 }