something here caused the issue

groups/cryde/default.nix

@@ -1,4 +1,5 @@
 {
+  inputs,
   pkgs,
   config,
   ...
@@ -29,25 +30,30 @@
         wayland.enable = ! config.services.xserver.enable; # experimental
         # theme = "corners";
       };
+
+      # defaultSession = "mango"; # DEBUG
       defaultSession =
-        "hyprland"
-        + (
-          if config.programs.hyprland.withUWSM == true
-          then "-uwsm"
-          else null
-        );
+        if config.programs.hyprland.withUWSM == true
+        then "hyprland-uwsm"
+        else "hyprland";
     };
 
     tumbler.enable = true; # Thunar image thumbnail support
     gvfs.enable = true; # Thunar mount, trash, and other functionality
   };
 
+  home-manager.sharedModules = [
+    inputs.mango.hmModules.mango
+  ];
+
   programs = {
     zsh.enable = true;
     fish.enable = true;
 
     nix-ld.enable = true;
 
+    mango.enable = true;
+
     neovim = {
       enable = true;
       defaultEditor = true;
@@ -105,6 +111,8 @@
     sessionVariables = {
       # Hint Electrons apps to use Wayland
       NIXOS_OZONE_WL = "1";
+
+      QT_QPA_PLATFORMTHEME = "xdgdesktopportal";
     };
     # systemPackages = with pkgs; [
     #   sddm-theme-corners