Improve Ubuntu config

configs/home/gui.nix

@@ -0,0 +1,22 @@
+{ config, lib, pkgs, ... }:
+{
+
+  nixpkgs.config.packageOverrides = pkgs: {
+    nur = import (builtins.fetchTarball "https://github.com/nix-community/NUR/archive/master.tar.gz") {
+      inherit pkgs;
+    };
+  };
+  home.packages = with pkgs; [
+    firefox
+    keepassxc
+    krita
+    element-desktop
+    mpv
+    mumble
+    libreoffice-fresh
+    slack
+    thunderbird
+    zoom-us
+  ];
+  services.nextcloud-client.enable = true;
+}