{
  config,
  options,
  lib,
  ...
}:

{
  config = lib.mkMerge [
    {
      # zswap is said to be more reliable than zram
      boot.kernelParams = lib.optionals (!config.zramSwap.enable) [ "zswap.enabled=1" ];
    }
    (lib.optionalAttrs (options ? "microvm" && config.microvm.guest.enable) {
      microvm = {
        hypervisor = lib.mkDefault "cloud-hypervisor";
        graphics.enable = lib.mkDefault true;
        vcpu = lib.mkDefault 2;
        hotplugMem = lib.mkDefault (2 * 1024);
        hotpluggedMem = lib.mkDefault 512;
      };
    })
  ];
}