Move stuff from configuration.nix into flake.nix

flake.nix

@@ -43,8 +43,29 @@
           {
             system.stateVersion = "24.05";
             nix.settings.experimental-features = [ "nix-command" "flakes" ];
-            environment.systemPackages = [
+            # Define a user account. Don't forget to set a password with ‘passwd’.
+            users.users.andreas = {
+              isNormalUser = true;
+              description = "Andreas";
+              extraGroups = [ "networkmanager" "wheel" ];
+              packages = with pkgs; [
+                flatpak
+                gnome-software
+                #  thunderbird
+              ];
+            };
 
+            # Install firefox.
+            programs.firefox.enable = true;
+
+            # Allow unfree packages
+            nixpkgs.config.allowUnfree = true;
+
+            # Set up system Packages
+            environment.systemPackages = with pkgs; [
+              git
+              #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+              #  wget
             ]
             ++ installedPackages.mkPackages.packages;
             programs.nix-ld = {