{
  service_configs,
  config,
  pkgs,
  ...
}:
let
  zfs-key = "/etc/zfs-key";
in
{
  system.activationScripts = {
    "zfs-key".text = ''
      #!/bin/sh
      rm -fr ${zfs-key} || true
      cp ${./secrets/zfs-key} ${zfs-key}
    '';
  };

  boot.zfs.package = pkgs.zfs_unstable;
  boot.initrd.kernelModules = [ "zfs" ];

  boot.kernelParams = [
    # 2048MB
    "zfs.zfs_arc_max=2048000000"
  ];

  boot.supportedFilesystems = [ "zfs" ];
  boot.zfs.extraPools = [ service_configs.zpool ];
}