add: desktop xdg integration

ai generated, needs some work/cleanup

home/default.nix

@@ -1,7 +1,6 @@
 { lib
 , pkgs
 , userName
-, isNixOS ? true
 , ...
 }: let
   # Have a file sturcture that holds all the configuration files that can't be configured by Nix
@@ -31,19 +30,6 @@ in
       stateVersion = "24.11";
     }
 
-    (lib.mkIf isNixOS {
-      sessionVariables = {
-        XDG_CURRENT_DESKTOP = "sway";
-        XDG_SESSION_TYPE = "wayland";
-        XDG_SESSION_DESKTOP = "sway";
-        XDG_CONFIG_HOME = "$HOME/.config";
-        XDG_CACHE_HOME = "$HOME/.cache";
-        XDG_DATA_HOME = "$HOME/.local/share";
-        XDG_STATE_HOME = "$HOME/.local/state";
-        NIXOS_OZONE_WL = "1";
-      };
-    })
-
     (lib.mkIf pkgs.stdenv.isLinux {
       pointerCursor = {
         gtk.enable = true;

home/sway.nix

@@ -153,6 +153,6 @@ in {
 
   programs.waybar = {
     enable = pkgs.stdenv.isLinux;
-    systemd.enable = true;
+    systemd.enable = false;
   };
 }

modules/desktop/default.nix

@@ -0,0 +1,178 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  cfg = config.desktop;
+
+  defaultWaylandPackages = with pkgs; [
+    brightnessctl
+    cliphist
+    foot
+    grim
+    libnotify
+    mako
+    networkmanagerapplet
+    playerctl
+    polkit_gnome
+    pavucontrol
+    rofi
+    slurp
+    waybar
+    wl-clipboard
+    xdg-utils
+  ];
+
+  defaultSwayPackages =
+    defaultWaylandPackages
+    ++ (with pkgs; [
+      pulseaudio
+      swayidle
+      swaylock
+      wmenu
+    ]);
+
+  resolvedDisplayManager =
+    if cfg.displayManager != "auto"
+    then cfg.displayManager
+    else if cfg.gnome.enable
+    then "gdm"
+    else if cfg.xfce.enable
+    then "lightdm"
+    else "none";
+in {
+  imports = [./xdg.nix];
+
+  options.desktop = {
+    displayManager = lib.mkOption {
+      type = lib.types.enum ["auto" "none" "gdm" "lightdm" "ly"];
+      default = "auto";
+      description = ''
+        Display manager to enable. In auto mode, GDM is used when GNOME is
+        enabled, LightDM is used when XFCE is enabled, and no display manager
+        is enabled for compositor-only configurations.
+      '';
+    };
+
+    gnome.enable = lib.mkEnableOption "the vanilla GNOME desktop environment";
+
+    xfce.enable = lib.mkEnableOption "the vanilla XFCE desktop environment";
+
+    sway = {
+      enable = lib.mkEnableOption "the Sway Wayland compositor";
+
+      extraPackages = lib.mkOption {
+        type = with lib.types; listOf package;
+        default = defaultSwayPackages;
+        defaultText = lib.literalExpression ''
+          with pkgs; [
+            brightnessctl
+            cliphist
+            foot
+            grim
+            libnotify
+            mako
+            networkmanagerapplet
+            playerctl
+            polkit_gnome
+            pulseaudio
+            pavucontrol
+            rofi
+            slurp
+            swayidle
+            swaylock
+            waybar
+            wl-clipboard
+            wmenu
+            xdg-utils
+          ]
+        '';
+        description = "Packages installed alongside Sway.";
+      };
+    };
+
+    hyprland = {
+      enable = lib.mkEnableOption "the Hyprland Wayland compositor";
+
+      extraPackages = lib.mkOption {
+        type = with lib.types; listOf package;
+        default = defaultWaylandPackages;
+        defaultText = lib.literalExpression ''
+          with pkgs; [
+            brightnessctl
+            cliphist
+            foot
+            grim
+            libnotify
+            mako
+            networkmanagerapplet
+            playerctl
+            polkit_gnome
+            pavucontrol
+            rofi
+            slurp
+            waybar
+            wl-clipboard
+            xdg-utils
+          ]
+        '';
+        description = ''
+          Packages installed alongside Hyprland. Hyprlock and Hypridle are
+          enabled separately so their NixOS integration, including PAM, is
+          configured as well.
+        '';
+      };
+    };
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf cfg.gnome.enable {
+      services.desktopManager.gnome.enable = true;
+    })
+
+    (lib.mkIf cfg.xfce.enable {
+      services.xserver = {
+        enable = true;
+        desktopManager.xfce.enable = true;
+      };
+    })
+
+    (lib.mkIf cfg.sway.enable {
+      programs.sway = {
+        enable = true;
+        wrapperFeatures.gtk = true;
+        extraPackages = cfg.sway.extraPackages;
+        extraSessionCommands = ''
+          export XDG_SESSION_TYPE=wayland
+          export XDG_SESSION_DESKTOP=sway
+          export NIXOS_OZONE_WL=1
+        '';
+      };
+    })
+
+    (lib.mkIf cfg.hyprland.enable {
+      programs = {
+        hyprland.enable = true;
+        hyprlock.enable = lib.mkDefault true;
+      };
+
+      environment.systemPackages = cfg.hyprland.extraPackages;
+    })
+
+    (lib.mkIf (resolvedDisplayManager == "gdm") {
+      services.displayManager.gdm.enable = true;
+    })
+
+    (lib.mkIf (resolvedDisplayManager == "lightdm") {
+      services.xserver = {
+        enable = true;
+        displayManager.lightdm.enable = true;
+      };
+    })
+
+    (lib.mkIf (resolvedDisplayManager == "ly") {
+      services.displayManager.ly.enable = true;
+    })
+  ];
+}

modules/desktop/xdg.nix

@@ -0,0 +1,42 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  cfg = config.desktop;
+  needsGtkPortal = cfg.xfce.enable || cfg.hyprland.enable;
+  usesPortal = cfg.gnome.enable || cfg.xfce.enable || cfg.sway.enable || cfg.hyprland.enable;
+in {
+  config = lib.mkMerge [
+    # GNOME and Sway configure their own portals in NixOS. XFCE needs a
+    # portal; Hyprland benefits from GTK as a fallback to its native one.
+    (lib.mkIf needsGtkPortal {
+      xdg.portal = {
+        enable = true;
+        extraPortals = [pkgs.xdg-desktop-portal-gtk];
+      };
+    })
+
+    (lib.mkIf (cfg.sway.enable || needsGtkPortal) {
+      xdg.portal.config.common.default = ["gtk"];
+    })
+
+    (lib.mkIf (usesPortal && config.services.gnome.gnome-keyring.enable) {
+      xdg.portal.config.common."org.freedesktop.impl.portal.Secret" = ["gnome-keyring"];
+    })
+
+    (lib.mkIf (cfg.sway.enable && config.services.gnome.gnome-keyring.enable) {
+      xdg.portal.config.sway."org.freedesktop.impl.portal.Secret" = ["gnome-keyring"];
+    })
+
+    # A per-desktop config takes precedence over Hyprland's packaged config,
+    # so include its native portal whenever adding a Secret preference.
+    (lib.mkIf (cfg.hyprland.enable && config.services.gnome.gnome-keyring.enable) {
+      xdg.portal.config.hyprland = {
+        default = ["hyprland" "gtk"];
+        "org.freedesktop.impl.portal.Secret" = ["gnome-keyring"];
+      };
+    })
+  ];
+}

modules/machine/cloud/configuration.nix

@@ -22,6 +22,7 @@ in {
     })
     ../../apps/gaming.nix
     ../../apps/appimage.nix
+    ../../desktop
     ../../graphics
     ../../pwrMgmt
     ../../networking/core.nix
@@ -74,7 +75,6 @@ in {
     brightnessctl
     wttrbar
     cliphist
-    xdg-desktop-portal-gtk
     xdg-utils
     flatpak-xdg-utils
     desktop-file-utils
@@ -89,6 +89,10 @@ in {
   # Enable Polkit
   security.polkit.enable = true;
 
+  # Enable desktop support (sway)
+  desktop.sway.enable = true;
+  desktop.displayManager = "ly";
+
   # Graphics module (../../graphics/default.nix)
   graphics = {
     enable = true;
@@ -189,27 +193,6 @@ in {
   # AppImage support
   appimage.enable = true;
 
-  # XDG stuff
-  xdg = {
-    portal = {
-      enable = true;
-      config = {
-        sway = {
-          default = ["wlr" "gtk"];
-          "org.freedesktop.impl.portal.Secret" = ["gnome-keyring"];
-        };
-        common = {
-          default = ["gtk"];
-          "org.freedesktop.impl.portal.Secret" = ["gnome-keyring"];
-        };
-      };
-      extraPortals = with pkgs; [
-        xdg-desktop-portal-wlr
-        xdg-desktop-portal-gtk
-      ];
-    };
-  };
-
   # sched_ext userspace CPU scheduling stuff - idk
   services.scx = {
     enable = true;