diff --git a/pkgs/adwcustomizer/default.nix b/pkgs/adwcustomizer/default.nix
new file mode 100644
index 00000000..3c23f797
--- /dev/null
+++ b/pkgs/adwcustomizer/default.nix
@@ -0,0 +1,50 @@
+{ stdenv, lib, fetchFromGitHub, wrapGAppsHook4, meson, ninja, pkg-config, glib, desktop-file-utils, gettext, blueprint-compiler, python3Packages, appstream-glib, gtk4, libadwaita }:
+
+# Not all parts of the application works with the current nixpkgs version of
+# libadwaita.
+python3Packages.buildPythonApplication rec {
+  pname = "adwcustomizer";
+  version = "2022-07-19";
+
+  src = fetchFromGitHub {
+    owner = "ArtyIF";
+    repo = "AdwCustomizer";
+    rev = "718f2490c95de60e8571b1a9d92af78919c14de1";
+    sha256 = "sha256-rMaWIJBQ+HC1Gs5xCRyuOCvB2XcTFB2q194bfK5Q48Q=";
+  };
+
+  patches = [
+    ./patches/update-non-flatpak-env.patch
+  ];
+
+  format = "other";
+  dontWrapGApps = true;
+
+  nativeBuildInputs = [
+    wrapGAppsHook4
+    meson
+    ninja
+    pkg-config
+    glib
+    desktop-file-utils
+    gettext
+    appstream-glib
+    blueprint-compiler
+    gtk4
+    libadwaita
+  ];
+
+  propagatedBuildInputs = with python3Packages; [
+    pygobject3
+  ];
+
+  preFixup = ''
+    makeWrapperArgs+=("''${gappsWrapperArgs[@]}")
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/ArtyIF/AdwCustomizer";
+    description = "Customize libadwaita and GTK3 apps (with adw-gtk3)";
+    license = licenses.mit;
+  };
+}
diff --git a/pkgs/adwcustomizer/patches/update-non-flatpak-env.patch b/pkgs/adwcustomizer/patches/update-non-flatpak-env.patch
new file mode 100644
index 00000000..20ef44b4
--- /dev/null
+++ b/pkgs/adwcustomizer/patches/update-non-flatpak-env.patch
@@ -0,0 +1,15 @@
+diff --git a/src/main.py b/src/main.py
+index b73c749..97e2b24 100644
+--- a/src/main.py
++++ b/src/main.py
+@@ -295,5 +295,10 @@ class AdwcustomizerApplication(Adw.Application):
+ 
+ def main(version):
+     """The application's entry point."""
++    if not os.getenv("XDG_CONFIG_HOME"):
++        os.environ["XDG_CONFIG_HOME"] = os.path.expanduser("~/.config")
++        app_config = os.path.join(os.environ["XDG_CONFIG_HOME"], "adwcustomizer")
++        os.makedirs(app_config, exist_ok=True)
++
+     app = AdwcustomizerApplication()
+     return app.run(sys.argv)
diff --git a/pkgs/default.nix b/pkgs/default.nix
index 50a1eba9..bbc8dbcf 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -6,6 +6,7 @@ let
   packages = self:
     let callPackage = newScope self;
     in {
+      adwcustomizer = callPackage ./adwcustomizer { };
       artem = callPackage ./artem.nix { };
       auto-editor = callPackage ./auto-editor.nix { };
       awesome-cli = callPackage ./awesome-cli { };