lxde: drop scope and migrate to by-name (#438741)

doc/release-notes/rl-2511.section.md

@@ -112,6 +112,8 @@
 
 - [private-gpt](https://github.com/zylon-ai/private-gpt) service has been removed by lack of maintenance upstream.
 
+- `lxde` scope has been removed, and its packages have been moved the top-level.
+
 ## Other Notable Changes {#sec-nixpkgs-release-25.11-notable-changes}
 
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->

pkgs/by-name/lx/lxpanel/package.nix

@@ -10,7 +10,7 @@
   libxmlxx,
   keybinder,
   keybinder3,
-  gtk2,
+  gtk2-x11,
   gtk3,
   libX11,
   libfm,
@@ -54,7 +54,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [
     (if withGtk3 then keybinder3 else keybinder)
-    (if withGtk3 then gtk3 else gtk2)
+    (if withGtk3 then gtk3 else gtk2-x11)
     libX11
     (libfm.override { inherit withGtk3; })
     (if withGtk3 then libwnck else libwnck2)

pkgs/desktops/lxde/default.nix

@@ -1,31 +0,0 @@
-{
-  config,
-  lib,
-  pkgs,
-}:
-
-lib.makeScope pkgs.newScope (
-  self: with self; {
-
-    inherit (pkgs) gtk2-x11;
-
-    lxappearance = callPackage ./core/lxappearance { };
-
-    lxappearance-gtk2 = callPackage ./core/lxappearance {
-      gtk2 = gtk2-x11;
-      withGtk3 = false;
-    };
-
-    lxmenu-data = callPackage ./core/lxmenu-data { };
-
-    lxpanel = callPackage ./core/lxpanel {
-      gtk2 = gtk2-x11;
-    };
-
-    lxrandr = callPackage ./core/lxrandr { };
-
-    lxsession = callPackage ./core/lxsession { };
-
-    lxtask = callPackage ./core/lxtask { };
-  }
-)

pkgs/top-level/aliases.nix

@@ -1487,6 +1487,25 @@ mapAliases {
   lumail = throw "'lumail' has been removed since its upstream is unavailable"; # Added 2025-05-07
   lv_img_conv = throw "'lv_img_conv' has been removed from nixpkgs as it is broken"; # Added 2024-06-18
   lxd = lib.warnOnInstantiate "lxd has been renamed to lxd-lts" lxd-lts; # Added 2024-04-01
+
+  lxde = {
+    gtk2-x11 = throw "'lxde.gtk2-x11' has been removed. Use 'gtk2-x11' directly.";
+
+    lxappearance = throw "'lxappearance' has been moved to top-level. Use 'lxappearance' directly"; # added 2025-08-31
+
+    lxappearance-gtk2 = throw "'lxappearance-gtk2' has been moved to top-level. Use 'lxappearance-gtk2' directly"; # added 2025-08-31
+
+    lxmenu-data = throw "'lxmenu-data' has been moved to top-level. Use 'lxmenu-data' directly"; # added 2025-08-31
+
+    lxpanel = throw "'lxpanel' has been moved to top-level. Use 'lxpanel' directly"; # added 2025-08-31
+
+    lxrandr = throw "'lxrandr' has been moved to top-level. Use 'lxrandr' directly"; # added 2025-08-31
+
+    lxsession = throw "'lxsession' has been moved to top-level. Use 'lxsession' directly"; # added 2025-08-31
+
+    lxtask = throw "'lxtask' has been moved to top-level. Use 'lxtask' directly"; # added 2025-08-31
+  };
+
   lxd-unwrapped = lib.warnOnInstantiate "lxd-unwrapped has been renamed to lxd-unwrapped-lts" lxd-unwrapped-lts; # Added 2024-04-01
   lxdvdrip = throw "'lxdvdrip' has been removed due to lack of upstream maintenance."; # Added 2025-06-09
   lzma = throw "'lzma' has been renamed to/replaced by 'xz'"; # Converted to throw 2024-10-17

pkgs/top-level/all-packages.nix

@@ -14374,17 +14374,10 @@ with pkgs;
 
   ### DESKTOPS/LXDE
 
-  lxde = recurseIntoAttrs (callPackage ../desktops/lxde { });
-  # Backwards compatibility aliases
-  inherit (lxde)
-    lxappearance
-    lxappearance-gtk2
-    lxmenu-data
-    lxpanel
-    lxrandr
-    lxsession
-    lxtask
-    ;
+  lxappearance-gtk2 = callPackage ../by-name/lx/lxappearance/package.nix {
+    gtk2 = gtk2-x11;
+    withGtk3 = false;
+  };
 
   lxqt = recurseIntoAttrs (
     import ../desktops/lxqt {