# Install VirtIO guest tools (QEMU agent + SPICE vdagent)
{ drivers, ... }:
{
  name = "virtio";
  cdroms = [ drivers.virtio-iso ];
  auditScript = ''
    @echo off
    :: VirtIO ISO is the first (and only) CD — drive letter D:
    if exist D:\cert\virtio_win_cert.cer (
      certutil -addstore TrustedPublisher D:\cert\virtio_win_cert.cer
    )
    if exist D:\virtio-win-guest-tools.exe (
      D:\virtio-win-guest-tools.exe /install /passive /norestart
    ) else if exist D:\guest-agent\qemu-ga-x86_64.msi (
      msiexec /i D:\guest-agent\qemu-ga-x86_64.msi /qn /norestart
    )
  '';
}