use nixOS on libvirt

nixcfgs/flake.nix

@@ -61,6 +61,14 @@
         ];
       };
 
+      nixosConfigurations.nixvirt = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        inherit specialArgs;
+        modules = [
+          ./hosts/nixvirt
+        ];
+      };
+
       darwinConfigurations."zen" = nix-darwin.lib.darwinSystem {
         system = "aarch64-darwin";
         inherit specialArgs;
@@ -73,8 +81,6 @@
         extraSpecialArgs = specialArgs;
         modules = [
           ./users/js0ny
-          plasma-manager.homeModules.plasma-manager
-          nix-flatpak.homeManagerModules.nix-flatpak
         ];
       };
       homeConfigurations."js0ny@zephyrus" = home-manager.lib.homeManagerConfiguration {
@@ -86,5 +92,12 @@
           nix-flatpak.homeManagerModules.nix-flatpak
         ];
       };
+      homeConfigurations."js0ny@nixvirt" = home-manager.lib.homeManagerConfiguration {
+        pkgs = forSystem "x86_64-linux";
+        extraSpecialArgs = specialArgs;
+        modules = [
+          ./users/js0ny/nixvirt.nix
+        ];
+      };
     };
 }

nixcfgs/hosts/nixvirt/default.nix

@@ -0,0 +1,32 @@
+# ~/.config/nixcfgs/hosts/nixvirt/default.nix
+{
+  config,
+  lib,
+  pkgs,
+  nix-flatpak,
+  ...
+}:
+{
+  imports = [
+    # impure build
+    /etc/nixos/hardware-configuration.nix
+    ../../modules/nixos
+    # ../../modules/nixos/users/js0ny.nix
+    # ../../modules/nixos/guest.nix
+    ../../modules/nixos/firefox.nix
+    ../../modules/nixos/desktop/gnome.nix
+    # ../../modules/nixos/desktop/niri.nix
+    ../../modules/nixos/desktop/gnome.nix
+    ../../modules/nixos/display-manager/gdm.nix
+  ];
+  boot.loader.grub.enable = true;
+  boot.loader.grub.device = "/dev/vda";
+  boot.loader.grub.useOSProber = true;
+  services.qemuGuest.enable = true;
+  services.spice-vdagentd.enable = true;
+
+  nixpkgs.config.allowUnfree = true;
+  networking.hostName = "nixvirt";
+  hardware.enableRedistributableFirmware = true;
+  system.stateVersion = "25.05";
+}

nixcfgs/modules/nixos/configuration.nix

@@ -3,9 +3,6 @@
   pkgs,
   ...
 }: {
-  # Use the systemd-boot EFI boot loader.
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.efi.canTouchEfiVariables = true;
 
   security.pam.services.login.enableGnomeKeyring = true;
 

nixcfgs/modules/nixos/host-machine.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }:
+{
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  environment.systemPackages = with pkgs; [
+    pciutils
+    usbutils
+    smartmontools
+    v4l-utils
+  ]
+}

nixcfgs/modules/nixos/packages.nix

@@ -8,13 +8,6 @@
     curl
     git
     tmux
-    pciutils
-    usbutils
-    smartmontools
     wl-clipboard
-    noto-fonts
-    noto-fonts-cjk-sans
-    noto-fonts-emoji
-    v4l-utils
   ];
 }

nixcfgs/users/js0ny/nixvirt.nix

@@ -0,0 +1,29 @@
+# ~/.config/nixcfgs/users/js0ny/default.nix
+{
+  pkgs,
+  nix-flatpak,
+  plasma-manager,
+  ...
+}:
+{
+  imports = [
+    ./default.nix
+    ./programs/gnome.nix
+    ./programs/shell.nix
+    ./programs/git.nix
+    ./programs/firefox.nix
+    # ./programs/floorp.nix
+    ../../modules/home/gnome-keyrings.nix
+    ../../modules/home/dev/nix.nix
+    ../../modules/home/dev/python.nix
+    ../../modules/home/programs/eza.nix
+    ../../modules/home/programs/fzf.nix
+    ../../modules/home/programs/lsd.nix
+    ../../modules/home/programs/nvim.nix
+    ../../modules/home/programs/starship.nix
+    ../../modules/home/programs/zoxide.nix
+    # ./flatpak.nix
+  ];
+
+  home.stateVersion = "25.05";
+}