fcitx5 on labwc

modules/applications/labwc/home.nix

@@ -1,6 +1,7 @@
 { lib, pkgs, ... }:
 let
   systemctl = lib.getExe' pkgs.systemd "systemctl";
+
   action = key: name: {
     "@key" = key;
     action = {
@@ -15,29 +16,6 @@ let
       "@command" = command;
     };
   };
-
-  desktopKeybinds = lib.concatMap (
-    desktop:
-    let
-      number = toString desktop;
-    in
-    [
-      {
-        "@key" = "W-${number}";
-        action = {
-          "@name" = "GoToDesktop";
-          "@to" = number;
-        };
-      }
-      {
-        "@key" = "W-C-${number}";
-        action = {
-          "@name" = "SendToDesktop";
-          "@to" = number;
-        };
-      }
-    ]
-  ) (lib.range 1 9);
 in
 {
   wayland.windowManager.labwc = {
@@ -45,40 +23,18 @@ in
     # NixOS owns the package so Home Manager only generates the user config.
     package = null;
 
+    systemd = {
+      enable = true;
+
+      variables = [
+        "DISPLAY"
+        "WAYLAND_DISPLAY"
+        "XDG_CURRENT_DESKTOP"
+        "XDG_SESSION_TYPE"
+      ];
+    };
+
     rc = {
-      core = {
-        decoration = "client";
-        gap = 10;
-        autoEnableOutputs = "yes";
-        reuseOutputMode = "yes";
-      };
-
-      theme = {
-        name = "Dracula";
-        cornerRadius = 8;
-        dropShadows = "yes";
-        dropShadowsOnTiled = "yes";
-      };
-
-      windowSwitcher = {
-        "@preview" = "yes";
-        "@outlines" = "yes";
-        osd = {
-          "@style" = "thumbnail";
-        };
-      };
-
-      focus = {
-        followMouse = "yes";
-        followMouseRequiresMovement = "yes";
-        raiseOnFocus = "no";
-      };
-
-      desktops = {
-        "@number" = 1;
-        "@popupTime" = 500;
-        "@prefix" = "Workspace";
-      };
 
       keyboard = {
         default = true;
@@ -136,7 +92,6 @@ in
           (execute "W-comma" "noctalia msg settings-toggle")
           (action "W-S-e" "Exit")
         ]
-        ++ desktopKeybinds
         ++ [
           (execute "XF86AudioRaiseVolume" "noctalia msg volume-up")
           (execute "XF86AudioLowerVolume" "noctalia msg volume-down")
@@ -147,6 +102,40 @@ in
         ];
       };
 
+      core = {
+        decoration = "client";
+        gap = 10;
+        autoEnableOutputs = "yes";
+        reuseOutputMode = "yes";
+      };
+
+      theme = {
+        name = "Dracula";
+        cornerRadius = 8;
+        dropShadows = "yes";
+        dropShadowsOnTiled = "yes";
+      };
+
+      windowSwitcher = {
+        "@preview" = "yes";
+        "@outlines" = "yes";
+        osd = {
+          "@style" = "thumbnail";
+        };
+      };
+
+      focus = {
+        followMouse = "yes";
+        followMouseRequiresMovement = "yes";
+        raiseOnFocus = "no";
+      };
+
+      desktops = {
+        "@number" = 1;
+        "@popupTime" = 500;
+        "@prefix" = "Workspace";
+      };
+
       mouse.default = true;
 
       libinput.device = [
@@ -159,6 +148,7 @@ in
           clickMethod = "clickfinger";
           scrollMethod = "twoFinger";
           scrollFactor = "4.0";
+          disableWhileTyping = "yes";
         }
         {
           "@category" = "non-touch";
@@ -174,10 +164,6 @@ in
     ];
   };
 
-  xdg.configFile."labwc/autostart".text = lib.mkAfter ''
-    ${systemctl} --user --no-block start labwc-session.target
-  '';
-
   xdg.configFile."labwc/shutdown".text = lib.mkAfter ''
     ${systemctl} --user stop graphical-session.target
   '';

modules/applications/labwc/nixos.nix

@@ -1,4 +1,9 @@
-{ inputs, pkgs, ... }:
+{
+  inputs,
+  pkgs,
+  lib,
+  ...
+}:
 let
   unstable = inputs.nixpkgs-unstable.legacyPackages.${pkgs.stdenv.hostPlatform.system};
 in
@@ -7,4 +12,31 @@ in
     enable = true;
     package = unstable.labwc;
   };
+
+  # NixOS decides whether a graphical session manages graphical-session.target
+  # itself by checking XDG_CURRENT_DESKTOP against a hard-coded list. Labwc is
+  # currently absent from that list, so NixOS starts
+  # nixos-fake-graphical-session.target before Labwc is ready.
+  #
+  # This configuration uses Home Manager's Labwc systemd integration, which
+  # imports the Wayland environment and starts labwc-session.target correctly.
+  # Mark the Labwc session as systemd-aware before the display-manager wrapper
+  # performs its hard-coded check. Otherwise services such as Fcitx5 can start
+  # before WAYLAND_DISPLAY is available.
+  #
+  # Despite the services.xserver namespace, this session wrapper is also used
+  # for Wayland sessions by display managers such as Ly.
+  services.xserver.displayManager.sessionCommands = lib.mkAfter ''
+    case ":''${XDG_CURRENT_DESKTOP:-}:" in
+      *:labwc:*)
+        case ":$XDG_CURRENT_DESKTOP:" in
+          *:X-NIXOS-SYSTEMD-AWARE:*)
+            ;;
+          *)
+            export XDG_CURRENT_DESKTOP="$XDG_CURRENT_DESKTOP:X-NIXOS-SYSTEMD-AWARE"
+            ;;
+        esac
+        ;;
+    esac
+  '';
 }