diff --git a/module/Gnome.nix b/module/Gnome.nix
index e9cb549..c1543a5 100644
--- a/module/Gnome.nix
+++ b/module/Gnome.nix
@@ -6,19 +6,6 @@
 		./desktop/Sound.nix
 	];
 
-	# Default apps.
-	xdg.mime.defaultApplications = {
-		# Use `file -i file.txt` to find file mime type.
-		# Use `xdg-mime query default "text/plain"` to find default app.
-		"application/pdf" = "org.gnome.Evince.desktop";
-		"application/vnd.openxmlformats-officedocument.*" = "onlyoffice-desktopeditors.desktop";
-		"audio/*" = "mpv.desktop";
-		"image/*" = "org.gnome.Loupe.desktop";
-		"text/*"  = "nvim.desktop";
-		"video/*" = "mpv.desktop";
-	};
-
-	# Extra apps.
 	environment.systemPackages = with pkgs; [
 		adwsteamgtk
 		gnome.gnome-remote-desktop
@@ -28,7 +15,6 @@
 		wl-clipboard
 	];
 
-	# Disable some apps.
 	services.gnome.gnome-keyring.enable = lib.mkForce false;
 	environment.gnome.excludePackages = with pkgs.gnome; [
 		# baobab      # Disk usage analyzer.
diff --git a/module/Sway.nix b/module/Sway.nix
index 499a7b0..0e29f67 100644
--- a/module/Sway.nix
+++ b/module/Sway.nix
@@ -9,16 +9,6 @@
 		./desktop/Sound.nix
 	];
 
-	xdg.mime.defaultApplications = {
-		# Use `file -i file.txt` to find file mime type.
-		# Use `xdg-mime query default "text/plain"` to find default app.
-		"application/pdf" = "org.gnome.Evince.desktop"; # TODO: Different apps?
-		"application/vnd.openxmlformats-officedocument.*" = "onlyoffice-desktopeditors.desktop";
-		"audio/*" = "mpv.desktop";
-		"image/*" = "org.gnome.Loupe.desktop";
-		"text/*"  = "nvim.desktop";
-		"video/*" = "mpv.desktop";
-	};
 
 	services.gnome.gnome-keyring.enable = lib.mkForce false;
 	environment.systemPackages = with pkgs; [
diff --git a/module/desktop/App.nix b/module/desktop/App.nix
index 3e59a1f..488efc8 100644
--- a/module/desktop/App.nix
+++ b/module/desktop/App.nix
@@ -1,4 +1,15 @@
 { pkgs, ... }: {
+	xdg.mime.defaultApplications = {
+		# Use `file -i file.txt` to find file mime type.
+		# Use `xdg-mime query default "text/plain"` to find default app.
+		"application/pdf" = "org.gnome.Evince.desktop";
+		"application/vnd.openxmlformats-officedocument.*" = "onlyoffice-desktopeditors.desktop";
+		"audio/*" = "mpv.desktop";
+		"image/*" = "org.gnome.Loupe.desktop";
+		"text/*"  = "nvim.desktop";
+		"video/*" = "mpv.desktop";
+	};
+
 	hardware.opengl = let
 		packages = with pkgs; [
 			dxvk
@@ -18,9 +29,11 @@
 			blender-hip
 			bottles dxvk gamescope mangohud vkd3d wine64
 			calibre
+			evince
 			gimp
 			godot_4 gdtoolkit
 			jellyfin-media-player
+			loupe
 			mpv
 			obs-studio
 			onlyoffice-bin