Update configuration.nix

configuration.nix

@@ -28,7 +28,11 @@ in {
 
   nixpkgs.config = { allowUnfree = true; };
 
-  networking.hostName = "nixos"; # Define your hostname.
+  virtualisation.libvirtd.enable = true;
+  virtualisation.libvirtd.qemu.package = pkgs.qemu_kvm;
+  users.extraGroups.libvirtd.members = [ "sevki" ];
+
+  networking.hostName = "trashcan"; # Define your hostname.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
   # Configure network proxy if necessary
   # networking.proxy.default = "http://user:password@proxy:port/";
@@ -60,6 +64,7 @@ in {
   services.xserver.enable = true;
 
   # Enable the GNOME Desktop Environment.
+  # services.displayManager.sddm.enable = true;
   services.xserver.displayManager.gdm.enable = true;
   services.xserver.desktopManager.gnome.enable = true;
 
@@ -69,6 +74,7 @@ in {
     xkbVariant = "";
   };
 
+
   # Enable CUPS to print documents.
   services.printing.enable = true;
 
@@ -93,7 +99,7 @@ in {
   users.users.sevki = {
     isNormalUser = true;
     description = "sevki";
-    extraGroups = [ "networkmanager" "wheel" ];
+    extraGroups = [ "networkmanager" "wheel" "libvirtd" ];
     packages = with pkgs; [
       firefox
       # rustc
@@ -139,6 +145,7 @@ in {
       llvmPackages_17.bintools
       podman-compose
       sea-orm-cli
+      ulauncher
       (vscode-with-extensions.override {
         vscodeExtensions = with vscode-extensions; [
           tamasfe.even-better-toml
@@ -212,6 +219,9 @@ in {
     wayland
     wayland-protocols
     nextdns
+    virt-manager
+    qemu
+    OVMF
   ];
 
   # https://github.com/rust-lang/rust-bindgen#environment-variables