Begin getting unifi/openstack setup working

Now I can create an instance, get NixOS on it, with
working IPv6 connectivity

nix/modules/nixos/virtualisation/qemu-guest/default.nix

@@ -0,0 +1,16 @@
+{
+  config,
+  lib,
+  modulesPath,
+  ...
+}:
+let
+  cfg = config.khscodes.virtualisation.qemu-guest;
+in
+{
+  options.khscodes.virtualisation.qemu-guest = {
+    enable = lib.mkEnableOption "Configures machine with NixOS profile for qemu guest";
+  };
+
+  config = lib.mkIf cfg.enable (import "${modulesPath}/profiles/qemu-guest.nix" { });
+}