diff --git a/modules/netdata.nix b/modules/netdata.nix
new file mode 100644
index 0000000..39640c0
--- /dev/null
+++ b/modules/netdata.nix
@@ -0,0 +1,30 @@
+{ config, pkgs, ... }:
+
+{
+  # open the netdata port
+  networking.firewall.allowedTCPPorts = [ 19999 ];
+
+  services.netdata = {
+    enable = true;
+
+    # small example config mapped to netdata.conf sections
+    config = {
+      global = {
+        "memory mode" = "ram";  # keep in memory for speed
+        "debug log" = "none";
+      };
+
+      web = {
+        # bind the dashboard to all interfaces (or set to "127.0.0.1:19999" for local-only)
+        "bind to" = "0.0.0.0:19999";
+      };
+
+      # enable go.d nvidia_smi collector (Netdata reads go.d configs)
+      "go.d" = {
+        nvidia_smi = {
+          enabled = "yes";    # note: Netdata expects string values matching netdata.conf keys
+        };
+      };
+    };
+  };
+}