diff --git a/devshells/default.nix b/devshells/default.nix
new file mode 100644
index 0000000..8f0d443
--- /dev/null
+++ b/devshells/default.nix
@@ -0,0 +1,10 @@
+{ pkgs }:
+
+pkgs.mkShell {
+  name = "nix";
+
+  packages = with pkgs; [
+    nil
+    nixpkgs-fmt
+  ];
+}
diff --git a/flake.nix b/flake.nix
index 854ff6d..394cea7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,11 +22,15 @@
 
       flake = { };
 
-      perSystem = { config, ... }: {
+      perSystem = { config, pkgs, ... }: {
         treefmt = {
           projectRootFile = "flake.nix";
           programs.nixpkgs-fmt.enable = true;
         };
+
+        devShells = {
+          default = pkgs.callPackage ./devshells/default.nix { };
+        };
       };
     };
 }