{ installDisk, ... }:
{
  disko.devices = {
    disk.main = {
      type = "disk";
      device = installDisk;
      content = {
        type = "gpt";
        partitions = {
          BIOS = {
            size = "1M";
            type = "EF02";
          };

          ESP = {
            label = "EFI";
            size = "512M";
            type = "EF00";
            content = {
              type = "filesystem";
              format = "vfat";
              mountpoint = "/boot";
              mountOptions = [ "umask=0077" ];
            };
          };

          luks = {
            label = "cryptroot";
            size = "100%";
            content = {
              type = "luks";
              name = "cryptroot";
              settings = {
                allowDiscards = true;
              };
              content = {
                type = "zfs";
                pool = "rpool";
              };
            };
          };

        };
      };
    };

    zpool.rpool = {
      type = "zpool";

      options = {
        ashift = "12";
        autotrim = "on";
      };

      rootFsOptions = {
        acltype = "posixacl";
        atime = "off";
        compression = "zstd";
        dnodesize = "auto";
        mountpoint = "none";
        normalization = "formD";
        xattr = "sa";
      };

      datasets = {
        root = {
          type = "zfs_fs";
          options.mountpoint = "none";
        };

        "root/nixos" = {
          type = "zfs_fs";
          mountpoint = "/";
          options = {
            canmount = "noauto";
            mountpoint = "legacy";
          };
          postCreateHook = ''
            zfs list -t snapshot -H -o name | grep -E '^rpool/root/nixos@blank$' \
              || zfs snapshot rpool/root/nixos@blank
          '';
        };

        home = {
          type = "zfs_fs";
          mountpoint = "/home";
          options.mountpoint = "legacy";
        };

        nix = {
          type = "zfs_fs";
          mountpoint = "/nix";
          options = {
            mountpoint = "legacy";
            "com.sun:auto-snapshot" = "false";
          };
        };

        persist = {
          type = "zfs_fs";
          mountpoint = "/persist";
          options.mountpoint = "legacy";
        };

        var = {
          type = "zfs_fs";
          options.mountpoint = "none";
        };

        "var/log" = {
          type = "zfs_fs";
          mountpoint = "/var/log";
          options.mountpoint = "legacy";
        };

        "var/lib" = {
          type = "zfs_fs";
          mountpoint = "/var/lib";
          options.mountpoint = "legacy";
        };

        "var/vmail" = {
          type = "zfs_fs";
          mountpoint = "/var/vmail";
          options = {
            mountpoint = "legacy";
            recordsize = "128K";
          };
        };

        reserved = {
          type = "zfs_volume";
          size = "4G";
        };
      };
    };
  };
}