fixes to impermenance

hosts/homeassistant/homeassistant.nix

@@ -177,12 +177,24 @@ in
     chown hass:hass ${config.services.home-assistant.configDir}/scripts.yaml
   '';
 
-  services.postgresql = {
-    enable = true;
-    ensureDatabases = [ "hass" ];
-    ensureUsers = [{
-      name = "hass";
-      ensureDBOwnership = true;
-    }];
+  services = {
+    postgresql = {
+      enable = true;
+      ensureDatabases = [ "hass" ];
+      ensureUsers = [{
+        name = "hass";
+        ensureDBOwnership = true;
+      }];
+    };
+    zigbee2mqtt = {
+      enable = true;
+      settings = {
+        homeassistant = config.services.home-assistant.enable;
+        permit_join = true;
+        serial = {
+          port = "/dev/ttyUSB0";
+        };
+      }
+    }
   };
 }

hosts/homeassistant/impermanence.nix

@@ -10,6 +10,9 @@
       "/var/lib/nixos"
       "/var/lib/tailscale"
       "/var/lib/systemd/coredump"
+      "/var/lib/zigbee2mqtt"
+      "/var/lib/postgresql"
+      "/var/lib/hass"
       "/etc/NetworkManager/system-connections"
       "/etc/secureboot"
       {