diff --git a/configuration.nix b/configuration.nix
index d78477c..17c840e 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -98,7 +98,7 @@ in
     enable = true;
     desktopManager = {
       xterm.enable = false;
-      xfce.enable = true;
+      kde.enable = true;
     };
   };
   services.displayManager.defaultSession = "xfce";
diff --git a/nixos-switch.log b/nixos-switch.log
index eeee8cf..baef054 100644
--- a/nixos-switch.log
+++ b/nixos-switch.log
@@ -1,47 +1,80 @@
+error:
+       … while evaluating the attribute 'config'
+
+         at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:322:9:
+
+          321|         options = checked options;
+          322|         config = checked (removeAttrs config [ "_module" ]);
+             |         ^
+          323|         _module = checked (config._module);
+
+       … while calling the 'seq' builtin
+
+         at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:322:18:
+
+          321|         options = checked options;
+          322|         config = checked (removeAttrs config [ "_module" ]);
+             |                  ^
+          323|         _module = checked (config._module);
+
+       (stack trace truncated; use '--show-trace' to show the full trace)
+
+       error: The option `services.xserver.desktopManager.kde' does not exist. Definition values:
+       - In `/etc/nixos/configuration.nix':
+           {
+             enable = true;
+           }
 building Nix...
+error:
+       … while evaluating the attribute 'config'
+
+         at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:322:9:
+
+          321|         options = checked options;
+          322|         config = checked (removeAttrs config [ "_module" ]);
+             |         ^
+          323|         _module = checked (config._module);
+
+       … while calling the 'seq' builtin
+
+         at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:322:18:
+
+          321|         options = checked options;
+          322|         config = checked (removeAttrs config [ "_module" ]);
+             |                  ^
+          323|         _module = checked (config._module);
+
+       (stack trace truncated; use '--show-trace' to show the full trace)
+
+       error: The option `services.xserver.desktopManager.kde' does not exist. Definition values:
+       - In `/etc/nixos/configuration.nix':
+           {
+             enable = true;
+           }
 building the system configuration...
-these 12 derivations will be built:
-  /nix/store/bxrh5j6dhh06kyw4gihyjisim79j0yrd-system-path.drv
-  /nix/store/ifjcd79fl24nys73c72fs0a53ssvii6g-dbus-1.drv
-  /nix/store/mdvxcazgagap9lg6d7z8gzjkwk2rnsm9-X-Restart-Triggers-dbus.drv
-  /nix/store/1y8y6alkfcvacw1dy0bkkwwbxhnw8zwr-unit-dbus.service.drv
-  /nix/store/4na9nl337nigyygsjwbqfda9lz92s8ns-unit-accounts-daemon.service.drv
-  /nix/store/b0c4vcpr1r8nd0v5rcyibpdhz44h98wb-unit-dbus.service.drv
-  /nix/store/9hsql818ng40csafv7yw66phg8ikfaxn-X-Restart-Triggers-polkit.drv
-  /nix/store/yycm3f65q9bpdrpg8lz500m1idzjkwm8-unit-polkit.service.drv
-  /nix/store/9jkzgjc6x2s7arwzx6ws7558yxq6wlax-system-units.drv
-  /nix/store/vmrkz4bbh218cmcmmjxm65g5l1vbfaj4-user-units.drv
-  /nix/store/5lrp61ppwfxrrwvdz672cq7f82kpxd29-etc.drv
-  /nix/store/mb3fy42nj06hwaqsyh7pv5d4mlkp2in9-nixos-system-nixos-24.05.3999.c42fcfbdfeae.drv
-these 3 paths will be fetched (4.43 MiB download, 35.85 MiB unpacked):
-  /nix/store/6z3idgkxr073zsnikgccfky2fbasn79y-dxvk-2.3.1-bin
-  /nix/store/74h9nfz4bgvcp69jy5s6gr3a555gzyyw-dxvk-i686-w64-mingw32-2.3.1
-  /nix/store/67kppzjwi5n30zc7iliskq7lpksh7lc9-dxvk-x86_64-w64-mingw32-2.3.1
-copying path '/nix/store/67kppzjwi5n30zc7iliskq7lpksh7lc9-dxvk-x86_64-w64-mingw32-2.3.1' from 'https://cache.nixos.org'...
-copying path '/nix/store/74h9nfz4bgvcp69jy5s6gr3a555gzyyw-dxvk-i686-w64-mingw32-2.3.1' from 'https://cache.nixos.org'...
-copying path '/nix/store/6z3idgkxr073zsnikgccfky2fbasn79y-dxvk-2.3.1-bin' from 'https://cache.nixos.org'...
-building '/nix/store/bxrh5j6dhh06kyw4gihyjisim79j0yrd-system-path.drv'...
-warning: collision between `/nix/store/f15x48r4w7rdkh4zmngdrlvq175lxijb-xorg-server-21.1.13/share/man/man1/Xserver.1.gz' and `/nix/store/199xw3102zq3mkvq4kdi9li4zsw5nvd6-xwayland-24.1.0/share/man/man1/Xserver.1.gz'
-warning: collision between `/nix/store/f15x48r4w7rdkh4zmngdrlvq175lxijb-xorg-server-21.1.13/lib/xorg/protocol.txt' and `/nix/store/199xw3102zq3mkvq4kdi9li4zsw5nvd6-xwayland-24.1.0/lib/xorg/protocol.txt'
-created 10349 symlinks in user environment
-gtk-update-icon-cache: Cache file created successfully.
-building '/nix/store/9hsql818ng40csafv7yw66phg8ikfaxn-X-Restart-Triggers-polkit.drv'...
-building '/nix/store/ifjcd79fl24nys73c72fs0a53ssvii6g-dbus-1.drv'...
-building '/nix/store/4na9nl337nigyygsjwbqfda9lz92s8ns-unit-accounts-daemon.service.drv'...
-building '/nix/store/mdvxcazgagap9lg6d7z8gzjkwk2rnsm9-X-Restart-Triggers-dbus.drv'...
-building '/nix/store/yycm3f65q9bpdrpg8lz500m1idzjkwm8-unit-polkit.service.drv'...
-building '/nix/store/1y8y6alkfcvacw1dy0bkkwwbxhnw8zwr-unit-dbus.service.drv'...
-building '/nix/store/b0c4vcpr1r8nd0v5rcyibpdhz44h98wb-unit-dbus.service.drv'...
-building '/nix/store/vmrkz4bbh218cmcmmjxm65g5l1vbfaj4-user-units.drv'...
-building '/nix/store/9jkzgjc6x2s7arwzx6ws7558yxq6wlax-system-units.drv'...
-building '/nix/store/5lrp61ppwfxrrwvdz672cq7f82kpxd29-etc.drv'...
-building '/nix/store/mb3fy42nj06hwaqsyh7pv5d4mlkp2in9-nixos-system-nixos-24.05.3999.c42fcfbdfeae.drv'...
-stopping the following units: accounts-daemon.service
-activating the configuration...
-setting up /etc...
-reloading user units for deadvey...
-restarting sysinit-reactivation.target
-reloading the following units: dbus.service
-restarting the following units: polkit.service
-starting the following units: accounts-daemon.service
-the following new units were started: sysinit-reactivation.target, systemd-tmpfiles-resetup.service
+error:
+       … while evaluating the attribute 'config.system.build.toplevel'
+
+         at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:322:9:
+
+          321|         options = checked options;
+          322|         config = checked (removeAttrs config [ "_module" ]);
+             |         ^
+          323|         _module = checked (config._module);
+
+       … while calling the 'seq' builtin
+
+         at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:322:18:
+
+          321|         options = checked options;
+          322|         config = checked (removeAttrs config [ "_module" ]);
+             |                  ^
+          323|         _module = checked (config._module);
+
+       (stack trace truncated; use '--show-trace' to show the full trace)
+
+       error: The option `services.xserver.desktopManager.kde' does not exist. Definition values:
+       - In `/etc/nixos/configuration.nix':
+           {
+             enable = true;
+           }