{ pkgs, lib, config, options, nodes, ... }:
{
  deployment = lib.mkIf (builtins.hasAttr "mermet" nodes) {
    targetEnv             = "virtualbox";
    virtualbox.headless   = true;
    virtualbox.memorySize = 1024;
    virtualbox.vcpu       = 2;
    virtualbox.disks.disk1.baseImage = ../../../.cache/nixops/virtualbox/nixops.vmdk;
    # NOTE: resize not yet supported.
    #virtualbox.disks.disk1.size = 6024;
    storeKeysOnMachine = true;
  };
}