{ pkgs, ... }: { boot.initrd.kernelModules = [ "virtio_blk" "virtio_scsi" "virtio_pci" ]; boot.loader.grub = { enable = true; device = "/dev/vda"; splashImage = null; }; fileSystems."/" = { device = "/dev/vda1"; fsType = "ext4"; }; nixpkgs.hostPlatform = "x86_64-linux"; }