change from mono-home-manager to full flake multi-system configuration

modules/desktop.nix

@@ -0,0 +1,41 @@
+{ config, pkgs, lib, ... }:
+
+let
+  systemd = pkgs.systemd;
+  sway = pkgs.sway;
+in {
+  programs.sway = {
+    enable = true;
+    wrapperFeatures.gtk = true;
+  };
+  
+  # Enable CUPS to print documents.
+  services.printing.enable = true;
+
+  # Enable the X11 windowing system.
+  programs.xwayland.enable = true;  # For compatibility with apps needing X
+  services.xserver.enable = false;
+  services.libinput.enable = true;  # Touchpad, mouse, input devices
+  programs.light.enable = true;  # For backlight control
+  security.polkit.enable = true;
+
+  # Configure keymap
+  services.xserver.xkb = {
+    layout = "de";
+    variant = "";
+  };
+
+  environment.systemPackages = with pkgs; [
+    swaylock
+    swayidle
+    wl-clipboard
+    brightnessctl
+    bemenu
+    xwayland
+
+    (writers.writeDashBin "sway-logout" ''
+      ${systemd}/bin/systemctl --user unset-environment WAYLAND_DISPLAY SWAYSOCK
+      ${sway}/bin/swaymsg exit
+    '')
+  ];
+}