diff --git a/nixos/home-manager.nix b/nixos/home-manager.nix
index c1561691..1579270e 100644
--- a/nixos/home-manager.nix
+++ b/nixos/home-manager.nix
@@ -5,6 +5,7 @@
   nixos,
   ...
 }: let
+  session = import ./session-variables.nix;
   mimeMap = desktopId: mimeTypes: lib.genAttrs mimeTypes (_: [desktopId]);
   browser = "google-chrome.desktop";
   imageViewer = "org.kde.gwenview.desktop";
@@ -293,7 +294,7 @@ in {
     preferStatusNotifierItems = true;
     importedVariables = ["GDK_PIXBUF_ICON_LOADER"];
     profileExtra = ''
-      systemctl --user set-environment IMALISON_SESSION_TYPE=x11
+      systemctl --user set-environment ${session.sessionType}=x11 ${session.windowManager}=xmonad
     '';
   };
 
diff --git a/nixos/imalison.nix b/nixos/imalison.nix
index 5f491847..f424bf2f 100644
--- a/nixos/imalison.nix
+++ b/nixos/imalison.nix
@@ -1,4 +1,8 @@
-{pkgs, ...}: {
+{ pkgs, ... }:
+let
+  session = import ./session-variables.nix;
+in
+{
   home-manager.users.imalison = {
     imports = [
       ./emacs.nix
@@ -16,6 +20,7 @@
     systemd.user.targets.hyprland-session = {
       Unit = {
         Description = "Hyprland session (custom)";
+        ConditionEnvironment = session.hyprland;
       };
     };
 
@@ -139,8 +144,9 @@
     in {
       Unit = {
         Description = "Hyprpaper (managed by home-manager)";
-        PartOf = ["hyprland-session.target"];
-        After = ["hyprland-session.target"];
+        ConditionEnvironment = session.hyprland;
+        PartOf = [ "hyprland-session.target" ];
+        After = [ "hyprland-session.target" ];
       };
 
       Service = {
diff --git a/nixos/session-variables.nix b/nixos/session-variables.nix
new file mode 100644
index 00000000..ecc00598
--- /dev/null
+++ b/nixos/session-variables.nix
@@ -0,0 +1,11 @@
+{
+  sessionType = "IMALISON_SESSION_TYPE";
+  windowManager = "IMALISON_WINDOW_MANAGER";
+
+  x11 = "IMALISON_SESSION_TYPE=x11";
+  wayland = "IMALISON_SESSION_TYPE=wayland";
+
+  xmonad = "IMALISON_WINDOW_MANAGER=xmonad";
+  hyprland = "IMALISON_WINDOW_MANAGER=hyprland";
+  riverXmonad = "IMALISON_WINDOW_MANAGER=river-xmonad";
+}
diff --git a/nixos/xmonad.nix b/nixos/xmonad.nix
index 99ae1bac..71416291 100644
--- a/nixos/xmonad.nix
+++ b/nixos/xmonad.nix
@@ -1,4 +1,7 @@
 { config, pkgs, inputs, lib, makeEnable, ... }:
+let
+  session = import ./session-variables.nix;
+in
 makeEnable config "myModules.xmonad" true  {
   myModules.taffybar.enable = lib.mkDefault (config.myModules.desktop.shellUi == "taffybar");
 
@@ -36,7 +39,7 @@ makeEnable config "myModules.xmonad" true  {
   home-manager.sharedModules = [
     {
       services.autorandr.enable = true;
-      systemd.user.services.autorandr.Unit.ConditionEnvironment = "IMALISON_SESSION_TYPE=x11";
+      systemd.user.services.autorandr.Unit.ConditionEnvironment = session.x11;
 
       services.random-background = {
         enable = true;
@@ -45,10 +48,10 @@ makeEnable config "myModules.xmonad" true  {
         imageDirectory = "/var/lib/syncthing/sync/Wallpaper/use";
       };
       # This service uses feh (X11), so don't run it in Wayland sessions.
-      systemd.user.services.random-background.Unit.ConditionEnvironment = "IMALISON_SESSION_TYPE=x11";
+      systemd.user.services.random-background.Unit.ConditionEnvironment = session.x11;
 
       services.xsettingsd.enable = true;
-      systemd.user.services.xsettingsd.Unit.ConditionEnvironment = "IMALISON_SESSION_TYPE=x11";
+      systemd.user.services.xsettingsd.Unit.ConditionEnvironment = session.x11;
 
       # services.parcellite = {
       #   enable = true;
@@ -63,7 +66,7 @@ makeEnable config "myModules.xmonad" true  {
       systemd.user.services.picom = {
         Unit = {
           Description = "Picom X11 compositor";
-          ConditionEnvironment = "IMALISON_SESSION_TYPE=x11";
+          ConditionEnvironment = session.x11;
           After = [ "graphical-session.target" ];
           PartOf = [ "graphical-session.target" ];
         };