diff --git a/configurations/hosts/prism/configuration.nix b/configurations/hosts/prism/configuration.nix
index b9c6fc1..53ac049 100644
--- a/configurations/hosts/prism/configuration.nix
+++ b/configurations/hosts/prism/configuration.nix
@@ -2,7 +2,7 @@
 # your system.  Help is available in the configuration.nix(5) man page
 # and in the NixOS manual (accessible by running ‘nixos-help’).
 
-{ config, pkgs, inputs, ... }:
+{ config, pkgs, inputs, lib, ... }:
 
 {
   imports =
@@ -10,6 +10,8 @@
       ./hardware-configuration.nix
     ];
 
+  services.displayManager.defaultSession = lib.mkForce "niri";
+
   # Bootloader.
   boot.loader.grub.enable = true;
   boot.loader.grub.device = "/dev/sda";
@@ -55,7 +57,7 @@
   nixpkgs.config = {
     allowUnfree = true;
     android_sdk.accept_license = true;
-    # cudaSupport = true;
+    cudaSupport = true;
   };
 
   # Enable Flapak
diff --git a/modules/gpg.nix b/modules/gpg.nix
index 95d64c0..c3c4e1c 100644
--- a/modules/gpg.nix
+++ b/modules/gpg.nix
@@ -4,8 +4,8 @@
   services.pcscd.enable = true;
   programs.gnupg.agent = {
      enable = true;
-     pinentryPackage = pkgs.pinentry-gtk2;
+     pinentryPackage = pkgs.pinentry-gnome3;
      enableSSHSupport = true;
   };
-  services.dbus.packages = [ pkgs.gcr ];
+  services.dbus.packages = [ pkgs.gcr_4 ];
 }
diff --git a/users/hashcube/pkgs/default.nix b/users/hashcube/pkgs/default.nix
index 90d8ab1..220abca 100644
--- a/users/hashcube/pkgs/default.nix
+++ b/users/hashcube/pkgs/default.nix
@@ -17,7 +17,7 @@
     indicator-sound-switcher
     insomnia
     inkscape
-    libreoffice-fresh
+    libreoffice
     tor-browser
     ghidra
 		proton-vpn