diff --git a/flake.nix b/flake.nix
index cfc3e08..6e453c6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -36,8 +36,9 @@
     ...
   }:
     flake-utils.lib.eachDefaultSystem (system: let
-      pkgs = import ./pkgs.nix {
-        inherit nixpkgs system geoip2-tarball;
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = import ./overlays.nix geoip2-tarball;
       };
     in {
       packages = {
diff --git a/modules/e11sync/default.nix b/modules/e11sync/default.nix
index eb39f91..d596824 100644
--- a/modules/e11sync/default.nix
+++ b/modules/e11sync/default.nix
@@ -7,8 +7,10 @@
   pkgs,
   ...
 }: let
-  inherit (pkgs.stdenv.hostPlatform) system;
-  pkgs1 = import ../../pkgs.nix {inherit nixpkgs system geoip2-tarball;};
+  pkgs1 = import nixpkgs {
+    inherit (pkgs.stdenv.hostPlatform) system;
+    overlays = import ../../overlays.nix geoip2-tarball;
+  };
 in {
   options.e11sync = with lib.types; {
     enable = lib.mkEnableOption "Enable e11sync";
diff --git a/overlays.nix b/overlays.nix
new file mode 100644
index 0000000..92fcd83
--- /dev/null
+++ b/overlays.nix
@@ -0,0 +1,17 @@
+# If you consider exposing this overlay to the users, remove
+# django overwrite from here.
+geoip2-tarball: [
+  (_: super: {
+    python3 = super.python3.override {
+      packageOverrides = _: python-super: {
+        django = python-super.django_5;
+      };
+    };
+    geoip-mmdb = super.callPackage ./pkgs/geoip-mmdb.nix {
+      inherit geoip2-tarball;
+    };
+    e11sync-static = super.callPackage ./pkgs/e11sync-static.nix {};
+    e11sync-frontend = super.callPackage ./pkgs/e11sync-frontend.nix {};
+    e11sync-backend = super.callPackage ./pkgs/e11sync-backend.nix {};
+  })
+]
diff --git a/pkgs.nix b/pkgs.nix
deleted file mode 100644
index b7717da..0000000
--- a/pkgs.nix
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-  nixpkgs,
-  system,
-  geoip2-tarball,
-}:
-import nixpkgs {
-  inherit system;
-  overlays = [
-    (_: super: {
-      python3 = super.python3.override {
-        packageOverrides = _: python-super: {
-          django = python-super.django_5;
-        };
-      };
-      geoip-mmdb = super.callPackage ./pkgs/geoip-mmdb.nix {
-        inherit geoip2-tarball;
-      };
-      e11sync-static = super.callPackage ./pkgs/e11sync-static.nix {};
-      e11sync-frontend = super.callPackage ./pkgs/e11sync-frontend.nix {};
-      e11sync-backend = super.callPackage ./pkgs/e11sync-backend.nix {};
-    })
-  ];
-}