Fix zsh (OMZ+carapace), GTK dark mode, waybar styling

hosts/sam-4screen-desktop/configuration.nix

@@ -17,6 +17,8 @@
     ./hardware-configuration.nix
   ];
 
+home-manager.backupFileExtension = "hm-bak";
+
   # ---
   # Nix (enable flakes on the installed system)
   # ---
@@ -230,12 +232,14 @@ PermitRootLogin = "no";
     enable = true;
     extraPortals = [
       pkgs.xdg-desktop-portal-gtk
-      pkgs.xdg-desktop-portal-gnome
+      pkgs.xdg-desktop-portal-wlr
     ];
   };
 
   # Minimal system packages needed for the session and core usability
   environment.systemPackages = with pkgs; [
+  spotify
+  vlc
   telegram-desktop
 flameshot
     waybar