diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..2e2c842
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,17 @@
+{
+  stdenv,
+  zola,
+  zerm,
+}:
+stdenv.mkDerivation {
+  pname = "averywinters.org";
+  version = "1.0.0";
+  src = ./.;
+  nativeBuildInputs = [zola];
+  configurePhase = ''
+    mkdir -p themes
+    ln -snf "${zerm}" "themes/zerm"
+  '';
+  buildPhase = "zola build";
+  installPhase = "cp -r public $out";
+}
diff --git a/flake.nix b/flake.nix
index c455265..b2089bb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -26,41 +26,34 @@
     nixpkgs,
     zerm,
     ...
-  }: (flake-utils.lib.eachDefaultSystem (system: let
-    pkgs = import nixpkgs {
-      inherit system;
-      overlays = [devshell.overlays.default];
-    };
-    pkg = pkgs.stdenv.mkDerivation {
-      pname = "averywinters.org";
-      version = "1.0.0";
-      src = ./.;
-      nativeBuildInputs = [pkgs.zola];
-      configurePhase = ''
-        mkdir -p themes
-        ln -snf "${zerm}" "themes/zerm"
-      '';
-      buildPhase = "zola build";
-      installPhase = "cp -r public $out";
-    };
-  in {
-    formatter = pkgs.alejandra;
-    devShells.default = let
-      commands = [
-        {package = pkgs.zola;}
-      ];
-      startupScript = ''
-        mkdir -p themes
-        ln -snf "${zerm}" "themes/zerm"
-      '';
-    in
-      pkgs.devshell.mkShell {
-        inherit commands;
-        devshell.startup.themes.text = startupScript;
+  }:
+    (flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = [
+          devshell.overlays.default
+        ];
+      };
+    in {
+      formatter = pkgs.alejandra;
+      devShells.default = let
+        commands = [
+          {package = pkgs.zola;}
+        ];
+        startupScript = ''
+          mkdir -p themes
+          ln -snf "${zerm}" "themes/zerm"
+        '';
+      in
+        pkgs.devshell.mkShell {
+          inherit commands;
+          devshell.startup.themes.text = startupScript;
+        };
+      packages.default = pkgs.callPackage ./default.nix {inherit zerm;};
+    }))
+    // {
+      overlays.default = final: prev: {
+        www = prev.callPackage ./default.nix {inherit zerm;};
       };
-    packages.default = pkg;
-    overlays.default = final: prev: {
-      www = pkg;
     };
-  }));
 }