diff --git a/nixos/gnome/home.nix b/nixos/gnome/home.nix
index ced08b41..2cc12ac0 100644
--- a/nixos/gnome/home.nix
+++ b/nixos/gnome/home.nix
@@ -3,6 +3,7 @@
 
   xsession = { enable = false; };
 
+  home.sessionVariables = { QT_QPA_PLATFORM = "wayland"; };
   home.packages = (with pkgs; [ gnome-usage gnome3.gnome-tweaks ])
     ++ (with pkgs.gnomeExtensions; [
       caffeine
diff --git a/nixos/gui/default.nix b/nixos/gui/default.nix
index 039752bb..3781da08 100644
--- a/nixos/gui/default.nix
+++ b/nixos/gui/default.nix
@@ -16,6 +16,7 @@
 
     programs.chromium.enable = true;
     programs.firefox.enable = true;
+    programs.sioyek.enable = true;
     home.packages = (with pkgs;
       with pkgs.gnome3;
       with pkgs.python39Packages; [
@@ -40,7 +41,6 @@
         libreoffice
         logseq
         mediainfo
-        mendeley
         mindforger
         modem-manager-gui
         nautilus