Add some basic initial modules
diff --git a/modules/security.nix b/modules/security.nix
new file mode 100644
index 0000000..d7bdbda
--- /dev/null
+++ b/modules/security.nix
@@ -0,0 +1,6 @@
+{
+  config.security.apparmor = {
+    enable = true;
+    killUnconfinedConfinables = true;
+  };
+}