config/modules/base/zfs/default.nix

{ config, lib, ... }:
{
  options.mj.base.zfs = with lib.types; {
    enable = lib.mkEnableOption "Enable common zfs options";
  };

  config = lib.mkIf config.mj.base.zfs.enable {
    # TODO
    #services.zfs = assert lib.assertMsg (config.mj.base.unitstatus.enable "mj.base.unitstatus must be enabled"; {
    services.zfs = {
      autoScrub.enable = true;
      trim.enable = true;
      expandOnBoot = "all";
    };

    mj.base.unitstatus.units = [ "zfs-scrub" ];
  };
}