fix: run other k3s clusters as kubevirt quests, use the interface provided by kubevirt

lib/default.nix

@@ -5,9 +5,10 @@
 
   attrs = import ./attrs.nix {inherit lib;};
 
-  genKubeVirtCoreModule = import ./genKubeVirtCoreModule.nix;
   genK3sServerModule = import ./genK3sServerModule.nix;
   genK3sAgentModule = import ./genK3sAgentModule.nix;
+  genKubeVirtHostModule = import ./genKubeVirtHostModule.nix;
+  genKubeVirtGuestModule = import ./genKubeVirtGuestModule.nix;
 
   # use path relative to the root of the project
   relativeToRoot = lib.path.append ../.;

lib/genKubeVirtGuestModule.nix

@@ -0,0 +1,33 @@
+{
+  pkgs,
+  hostName,
+  networking,
+  ...
+}: let
+  inherit (networking.hostsAddr.${hostName}) iface;
+in {
+  # supported file systems, so we can mount any removable disks with these filesystems
+  boot.supportedFilesystems = [
+    "ext4"
+    "btrfs"
+    "xfs"
+    "fat"
+    "vfat"
+    "exfat"
+  ];
+
+  networking = {
+    inherit hostName;
+    inherit (networking) defaultGateway nameservers;
+    inherit (networking.hostsInterface.${hostName}) interfaces;
+    networkmanager.enable = false;
+  };
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "23.11"; # Did you read the comment?
+}

lib/nixosSystem.nix

@@ -17,13 +17,6 @@ in
       nixos-modules
       ++ [
         nixos-generators.nixosModules.all-formats
-        {
-          # formatConfigs.iso = {config, ...}: {};
-          formatConfigs.proxmox = {config, ...}: {
-            # custom proxmox's image name
-            proxmox.qemuConf.name = "${config.networking.hostName}-nixos-${config.system.nixos.label}";
-          };
-        }
       ]
       ++ (
         lib.optionals ((lib.lists.length home-modules) > 0)