feat: Add minimal VM without autologin

flake.nix

@@ -48,6 +48,11 @@
           inputs.home-manager.nixosModules.default
         ];
       };
+      zenitsu = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        specialArgs = { inherit inputs; };
+        modules = [ ./zenitsu ];
+      };
     };
   };
 }

zenitsu/default.nix

@@ -0,0 +1,63 @@
+{ lib, modulesPath, pkgs, ... }:
+
+{
+  boot = {
+    initrd.postDeviceCommands = "mke2fs /dev/vdb";
+    loader = {
+      grub.enable = false;
+      systemd-boot.enable = lib.mkForce false;
+    };
+  };
+  environment.etc = {
+    "profile" = {
+      enable = true;
+      group = "root";
+      mode = "0755";
+      text = "${pkgs.xorg.xinit}/bin/startx";
+      user = "root";
+    };
+    "X11/xinit/xinitrc" = {
+      enable = true;
+      group = "root";
+      mode = "0755";
+      text = "${pkgs.alacritty}/bin/alacritty";
+      user = "root";
+    };
+  };
+  imports = [
+    "${modulesPath}/virtualisation/qemu-vm.nix"
+    "${modulesPath}/profiles/qemu-guest.nix"
+  ];
+  networking.hostName = "zenitsu";
+  services = {
+    logrotate.enable = false;
+    xserver = {
+      displayManager.startx.enable = true;
+      enable = true;
+    };
+  };
+  system.stateVersion = "23.11";
+  users.users."zenitsu" = {
+    isNormalUser = true;
+    password = "zenitsu";
+  };
+  virtualisation = {
+    diskImage = "/dev/null";
+    emptyDiskImages = [ (64 * 1024) ];
+    fileSystems."/" = lib.mkForce {
+      device = "/dev/vdb";
+      fsType = "ext4";
+    };
+    qemu.options = [
+      "-vga virtio"
+      ''-smp "$(nproc)"''
+      ''
+        -m "$(($(getconf _PHYS_PAGES) * $(getconf PAGE_SIZE) / (1024 ** 2) * 3 / 4))"''
+      "-display gtk,grab-on-hover=yes"
+    ];
+    resolution = {
+      x = 1280;
+      y = 1080;
+    };
+  };
+}