Move some things out of root scope

nixos/configuration.nix

@@ -83,6 +83,13 @@
      packages = with pkgs; [
        firefox
        tree
+       bspwm
+       sxhkd
+       xfce.xfce4-terminal
+       dmenu
+       polybar
+       picom-allusive
+       r2modman
      ];
   };
 
@@ -92,19 +99,12 @@
      vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
      nano
      wget
-     bspwm
-     sxhkd
-     xfce.xfce4-terminal
-     dmenu
-     polybar
-     picom-allusive
      git
      lshw
      vulkan-tools
      vkmark
      mesa
      nvtop
-     r2modman
   ];
 
   programs.steam.enable = true;