fix: include nomarchy flake in VM at /etc/nomarchy

core/system/vm-guest.nix

@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ inputs, lib, ... }:
 
 {
   # Shared VM configuration
@@ -12,6 +12,9 @@
   services.qemuGuest.enable = true;
   services.xserver.videoDrivers = [ "qxl" "virtio" "modesetting" ];
 
+  # Provide the flake to the VM for local rebuilding
+  environment.etc."nomarchy".source = lib.mkDefault inputs.self;
+
   # Dummy hardware config for VM
   fileSystems."/" = lib.mkDefault { device = "/dev/disk/by-label/nixos"; };
   boot.loader.grub.device = lib.mkDefault "/dev/vda";