Going to bed.

flake.nix

@@ -75,6 +75,8 @@
       "albert@backups-rpi4"     = libx.mkHome { hostname = "backups-rpi4"; system = "aarch64-linux"; type = "small"; };
       "albert@piaware-rpi4"     = libx.mkHome { hostname = "piaware-rpi4"; system = "aarch64-linux"; type = "small"; };
       "albert@quitman-rpi4"     = libx.mkHome { hostname = "quitman-rpi4"; system = "aarch64-linux"; type = "small"; };
+      # Containers 
+      "albert@nixos-rdesktop"   = libx.mkHome { hostname = "nixos-rdesktop"; };
     };
     deploy.nodes = {
       osaka-linode-01  = libx.deploy { hostname = "osaka-linode-01"; };

lib/default.nix

@@ -47,8 +47,9 @@
   }: { 
     autoStart = true;
     privateNetwork = false;
-    specialArgs = { inherit pkgs pkgs-unstable container username desktop theme system repo unfree; };
-    config = { lib, config, pkgs, pkgs-unstable, container, username, desktop, theme, system, repo, ... }: {
+    specialArgs = { inherit pkgs pkgs-unstable container username desktop theme system repo unfree stateVersion; };
+    config = { lib, config, pkgs, pkgs-unstable, container, username, desktop, theme, system, repo, stateVersion, ... }: {
+      system.stateVersion = stateVersion;
       imports = [ ../nixos/containers/${container} ];
     };
   };

nixos/common/modules/networking.nix

@@ -7,11 +7,11 @@
     };
 
     useDHCP = lib.mkDefault true;
-    enableIPv6 = false;
+    enableIPv6 = lib.mkForce false;
     firewall = { 
       enable = true;
       allowedTCPPorts = [  ];
       allowedUDPPorts = [  ];
     };
   };
-}
+}

nixos/containers/rdesktop/default.nix

@@ -1,18 +1,25 @@
 { pkgs, username, stateVersion, desktop, ... }: {
   imports = [
-    ../../common/desktops/${desktop}
+ #   ../../common/desktops/${desktop}
     ../../users/${username}
+    ../../common/modules/nixos.nix
+    ../../common/modules/networking.nix
   ];
 
-  networking.firewall = {
+  networking.firewall.allowedTCPPorts = [ 3389 ];
+
+  services.xserver = {
     enable = true;
-    allowedTCPPorts = [ 3390 ];
-  };  
+    desktopManager = {
+      xterm.enable = false;
+      xfce.enable = true;
+    };
+    displayManager.defaultSession = "xfce"; 
+  };
 
   services.xrdp = {
     enable = true;
     openFirewall = true;
-    port = 3390;
-    defaultWindowManager =  "${pkgs.xfce.xfce4-session}/bin/xfce4-session";
+    defaultWindowManager = "xfce4-session";
   };
 }