diff --git a/flake.nix b/flake.nix
index a05d49f..85a80f8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -32,10 +32,6 @@
     flake-utils.lib.eachDefaultSystem (system: let
       pkgs = import nixpkgs {inherit system;};
 
-      appDeps = with pkgs.python3Packages; [django_5 django-compressor];
-      runtimeDeps = with pkgs; appDeps ++ [python3Packages.geoip2 libmaxminddb];
-      buildDeps = with pkgs; appDeps ++ [dart-sass];
-
       geoip-archive = pkgs.stdenv.mkDerivation {
         name = "geoip-archive";
         srcs = [geoip2-asn geoip2-city geoip2-country];
@@ -48,23 +44,8 @@
         '';
       };
     in rec {
-      packages.e11sync-static = pkgs.stdenv.mkDerivation {
-        name = "e11sync-static";
-        src = self;
-        nativeBuildInputs = buildDeps;
-        buildPhase = with pkgs; ''
-          mkdir -p static
-          export E11SYNC_STATIC_ROOT=static
-          export E11SYNC_DEBUG=
-          export E11SYNC_COMPRESS_OFFLINE=1
-          ${python3}/bin/python3 ${self}/app/manage.py collectstatic
-          ${python3}/bin/python3 ${self}/app/manage.py compress
-
-          ${findutils}/bin/find static/CACHE -name '*.css' | \
-              ${findutils}/bin/xargs -P''$(${coreutils}/bin/nproc) -I{} sh -c \
-                  "${zopfli}/bin/zopfli {} && ${brotli}/bin/brotli {}"
-        '';
-        installPhase = ''mv static $out'';
+      packages.e11sync-static = pkgs.callPackage ./pkgs/e11sync-static.nix {
+        inherit self;
       };
       packages.e11sync = pkgs.callPackage ./pkgs/e11sync.nix {
         inherit self geoip-archive;
@@ -84,8 +65,15 @@
       };
 
       devShells.default = pkgs.mkShellNoCC {
-        packages = [pkgs.python3Packages.django-debug-toolbar] ++ runtimeDeps ++ buildDeps;
 
+        packages = with pkgs; [
+          python3Packages.django-debug-toolbar
+          python3Packages.django_5
+          python3Packages.django-compressor
+          python3Packages.geoip2
+          libmaxminddb
+          dart-sass
+        ];
         GEOIP_PATH = "${geoip-archive}";
         E11SYNC_DEBUG = "1";
         LOCALE_ARCHIVE = "${pkgs.glibcLocales}/lib/locale/locale-archive";
diff --git a/pkgs/e11sync-static.nix b/pkgs/e11sync-static.nix
new file mode 100644
index 0000000..db1a67c
--- /dev/null
+++ b/pkgs/e11sync-static.nix
@@ -0,0 +1,33 @@
+{
+  self,
+  stdenv,
+  python3,
+  python3Packages,
+  coreutils,
+  zopfli,
+  brotli,
+  findutils,
+  dart-sass,
+}:
+stdenv.mkDerivation {
+  name = "e11sync-static";
+  src = self;
+  nativeBuildInputs = [
+    python3Packages.django_5
+    python3Packages.django-compressor
+    dart-sass
+  ];
+  buildPhase = ''
+    mkdir -p static
+    export E11SYNC_STATIC_ROOT=static
+    export E11SYNC_DEBUG=
+    export E11SYNC_COMPRESS_OFFLINE=1
+    ${python3}/bin/python3 ${self}/app/manage.py collectstatic
+    ${python3}/bin/python3 ${self}/app/manage.py compress
+
+    ${findutils}/bin/find static/CACHE -name '*.css' | \
+    ${findutils}/bin/xargs -P''$(${coreutils}/bin/nproc) -I{} sh -c \
+    "${zopfli}/bin/zopfli {} && ${brotli}/bin/brotli {}"
+  '';
+  installPhase = ''mv static $out'';
+}