Add nats server

services/nats/default.nix

@@ -0,0 +1,24 @@
+{ ... }:
+{
+  services.nats = {
+    enable = true;
+    jetstream = true;
+    serverName = "nats1";
+    settings = {
+      accounts = {
+        "ADMIN" = {
+          users = [
+            {
+              nkey = "UA44ZINQKUBTV7CX3RE7MVHOEQOQK2VQGCI4GL4M7XBJB4S66URHLW7A";
+            }
+          ];
+        };
+      };
+      system_account = "ADMIN";
+      jetstream = {
+        max_mem = "1G";
+        max_file = "1G";
+      };
+    };
+  };
+}