diff --git a/configs/default.nix b/configs/default.nix
index 3b12c4e..bcae4f1 100644
--- a/configs/default.nix
+++ b/configs/default.nix
@@ -211,6 +211,7 @@ in {
     ./mime.nix
     ./nano.nix
     ./neovim.nix
+    ./nix.nix
     ./newsboat.nix
     ./flameshot-once.nix
     ./packages
diff --git a/configs/nix.nix b/configs/nix.nix
new file mode 100644
index 0000000..39b3738
--- /dev/null
+++ b/configs/nix.nix
@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+{
+  # enable `nix flake`
+  nix = {
+    package = pkgs.nixUnstable;
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };
+}