diff --git a/lib/nixvim.nix b/lib/nixvim.nix
new file mode 100644
index 00000000..5f487a1c
--- /dev/null
+++ b/lib/nixvim.nix
@@ -0,0 +1,6 @@
+{ config, lib }:
+
+{
+  isStandalone =
+    !config?hmConfig && !config?nixosConfig && !config?darwinConfig;
+}