{
  povSelf,
  hostConfig,
  config,
  lib,
  pkgs,
  ...
}:

let
  inherit (lib) types;
  cfg = lib.getAttrFromPath povSelf config;
  users = lib.pipe config.modules.users [
    (lib.mapAttrsToList (name: value: if value.enable then name else null))
    (lib.filter (element: !builtins.isNull element))
  ];
  part =
    name: content:
    if cfg.encrypt then
      {
        type = "luks";
        settings.allowDiscards = true;
        inherit name content;
      }
    else
      content;
in
{

  options = {
    enable = {
      type = types.bool;
      default = false;
    };
    disks = {
      type = types.listOf types.path;
    };
    type = {
      type = types.enum [
        "lvm"
        "zfs"
      ];
    };
    encrypt = {
      type = types.bool;
      default = false;
    };
    parts = {
      home = {
        type = types.bool;
        default = false;
      };
      homePerUser = {
        type = types.bool;
        default = cfg.parts.home;
      };
      nix = {
        type = types.bool;
        default = true;
      };
      tmp = {
        type = types.bool;
        default = false;
      };
      system = {
        type = types.bool;
        default = false;
      };
    };
    reservedSpace = {
      type = types.nullOr types.str;
      default = "8G";
    };
    swap = {
      enable = {
        type = types.bool;
        default = false;
      };
      size = {
        type = types.strMatching "[0-9]+[KMGTP]";
      };
    };
  };

  config = lib.mkIf cfg.enable {
    disko.devices = {
      disk = listToAttrs (imap0 (i: device: { name = "${hostConfig.hostName}-dsk${toString i}"; value = {
        inherit device;
        content = {
          type = "gpt";
          partitions = {
            boot = {
              size = "512M";
              type = "EF00";
              content = {
                type = "filesystem";
                format = "vfat";
                # FIXME: Multidisk?
                mountpoint = "/boot";
                mountOptions = [
                  "umask=0077"
                  "dmask=0077"
                  "nofail"
                ];
              };
            };
            cryptroot = {
              size = "100%";
              content = {
                type = "luks";
                settings = {
                  allowDiscards = true; # FIXME: If disk is an SSD??
                };
                content = {
                  type = "lvm_pv"; # FIXME: Or ZFS?
                  vg = hostConfig.hostName;
                };
              };
            };
          };
        };
      }) cfg.disks);
      lvm_vg = {
        ${hostConfig.hostName} = {
          lvs = {
            swap = {
              size = cfg.swap.size;
              content.type = "swap";
            };
            root = {};
            nix = {};
            persist = {};
            home = {};
          };
        };
      };
  };
}