feat: Add machine configurations

machines/vm/default.nix

@@ -0,0 +1,31 @@
+{ ... }: {
+  services.qemuGuest.enable = true;
+
+  boot.initrd.availableKernelModules = [
+    "xhci_pci"
+    "ehci_pci"
+    "ahci"
+    "usbhid"
+    "usb_storage"
+    "sd_mod"
+    "virtio_balloon"
+    "virtio_blk"
+    "virtio_pci"
+    "virtio_ring"
+    # "virtio_vga"
+    "virtio_gpu"
+  ];
+  fileSystems."/".device = "/dev/disk/by-label/nixos";
+
+  boot.loader.systemd-boot.enable = true;
+
+  services.openssh.enable = true;
+
+  # 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 = "22.11"; # Did you read the comment?
+}