packages: Clean up the package "repository"

packages/desktop/gnome/extensions/notification-timeout/default.nix

@@ -0,0 +1,31 @@
+{ stdenv
+, lib
+, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "gnome-shell-extension-notification-timeout";
+  version = "unstable-2021-07-25";
+
+  src = fetchFromGitHub {
+    owner = "vchlum";
+    repo = "notification-timeout";
+    rev = "1f8c2a433383f974bd49869db5ae7a6d7a82d302";
+    sha256 = "1ndr8gn52qggq45lbdc5miz62is8im34nzmzsghcnarrm73naq59";
+  };
+
+  uuid = "notification-timeout@chlumskyvaclav.gmail.com";
+
+  dontBuild = true;
+
+  installPhase = ''
+    mkdir -p $out/share/gnome-shell/extensions/${uuid}
+    cp -r metadata.json extension.js prefs.js schemas/ $out/share/gnome-shell/extensions/${uuid}
+  '';
+
+  meta = with lib; {
+    description = "Gnome Shell extension for configuring notification timeout. ";
+    homepage = "https://github.com/vchlum/notification-timeout";
+    license = licenses.mit;
+    maintainers = [ ];
+  };
+}