niri: update xwayland handling

home-manager/progs/niri.nix

@@ -36,10 +36,6 @@ in
         disable-primary = true;
       };
 
-      environment = {
-        DISPLAY = ":0";
-      };
-
       # skip the hotkey menu thingy
       hotkey-overlay.skip-at-startup = true;
 
@@ -61,6 +57,8 @@ in
         };
       };
 
+      xwayland-satellite.path = lib.getExe pkgs.xwayland-satellite;
+
       spawn-at-startup = [
         {
           command = [
@@ -80,14 +78,6 @@ in
             "${../wallpaper.png}"
           ];
         }
-
-        # Xwayland on niri via xwayland-satellite
-        {
-          command = [
-            (lib.getExe pkgs.xwayland-satellite)
-            config.programs.niri.settings.environment.DISPLAY
-          ];
-        }
       ];
 
       window-rules = [