diff --git a/nixos/default.nix b/nixos/default.nix
index d637bef..d1bc2e3 100644
--- a/nixos/default.nix
+++ b/nixos/default.nix
@@ -2,7 +2,6 @@
 with lib;
 let
   vmixLib = import ./../lib {inherit pkgs lib; };
-  vmixCfg = config.vmix;
   args = { inherit config pkgs lib vmixLib; };
 in
 {
diff --git a/overlay.nix b/overlay.nix
new file mode 100644
index 0000000..65654ba
--- /dev/null
+++ b/overlay.nix
@@ -0,0 +1,3 @@
+final: prev: {
+  vmixLib = prev.callPackage ./lib {};
+}
\ No newline at end of file