diff --git a/pkgs/overlays.nix b/pkgs/overlays.nix
new file mode 100644
index 0000000..212d4dc
--- /dev/null
+++ b/pkgs/overlays.nix
@@ -0,0 +1,3 @@
+# This allows using nix cli tools to build a package from the overlay without running nixos-rebuild:
+# nix run -I nixpkgs-overlays=./pkgs/overlays.nix nixpkgs.overlay-pkg
+[ (import ./default.nix) ]