_: {
  disk = {
    nvme0 = {
      type = "disk";
      device = "/dev/disk/by-id/nvme-SHPP41-500GM_SSB4N6719101A4N22";
      content = {
        type = "table";
        format = "gpt";
        partitions = [
          {
            name = "boot";
            type = "partition";
            start = "0";
            end = "1M";
            part-type = "primary";
            flags = ["bios_grub"];
          }
          {
            name = "ESP";
            type = "partition";
            start = "1M";
            end = "1G";
            bootable = true;
            content = {
              type = "filesystem";
              format = "vfat";
              mountpoint = "/boot/efis/nvme-SHPP41-500GM_SSB4N6719101A4N22";
            };
          }
          {
            name = "zfsboot";
            type = "partition";
            start = "1G";
            end = "5G";
            content = {
              type = "zfs";
              pool = "bpool";
            };
          }
          {
            name = "swap";
            type = "partition";
            start = "5G";
            end = "21G";
            content = {
              type = "swap";
              randomEncryption = true;
            };
          }
          {
            name = "zfsroot";
            type = "partition";
            start = "21G";
            end = "100%";
            content = {
              type = "zfs";
              pool = "rpool";
            };
          }
        ];
      };
    };
    nvme1 = {
      type = "disk";
      device = "/dev/disk/by-id/nvme-SHPP41-500GM_SSB4N6719101A4N0E";
      content = {
        type = "table";
        format = "gpt";
        partitions = [
          {
            name = "BIOS";
            type = "partition";
            start = "0";
            end = "1M";
            part-type = "primary";
            flags = ["bios_grub"];
          }
          {
            name = "ESP";
            type = "partition";
            start = "1M";
            end = "1G";
            bootable = true;
            content = {
              type = "filesystem";
              format = "vfat";
              mountpoint = "/boot/efis/nvme-SHPP41-500GM_SSB4N6719101A4N0E";
            };
          }
          {
            name = "zfsboot";
            type = "partition";
            start = "1G";
            end = "5G";
            content = {
              type = "zfs";
              pool = "bpool";
            };
          }
          {
            name = "swap";
            type = "partition";
            start = "5G";
            end = "21G";
            content = {
              type = "swap";
              randomEncryption = true;
            };
          }
          {
            name = "zfsroot";
            type = "partition";
            start = "21G";
            end = "100%";
            content = {
              type = "zfs";
              pool = "rpool";
            };
          }
        ];
      };
    };
  };
  zpool = {
    rpool = {
      type = "zpool";
      mode = "mirror";
      rootFsOptions = {
        acltype = "posixacl";
        compression = "zstd";
        dnodesize = "auto";
        normalization = "formD";
        relatime = "on";
        xattr = "sa";
        encryption = "on";
        keyformat = "passphrase";
        keylocation = "prompt";
      };
      options = {
        ashift = "12";
        autotrim = "on";
      };

      datasets = {
        "root" = {
          zfs_type = "filesystem";
          options.mountpoint = "legacy";
          mountpoint = "/";
        };
        "nix" = {
          zfs_type = "filesystem";
          options.mountpoint = "legacy";
          mountpoint = "/nix";
        };
        "var" = {
          zfs_type = "filesystem";
          options.mountpoint = "legacy";
          mountpoint = "/var";
        };
        "persist" = {
          zfs_type = "filesystem";
          options.mountpoint = "legacy";
          mountpoint = "/persist";
        };
        "home" = {
          zfs_type = "filesystem";
          options.mountpoint = "legacy";
          mountpoint = "/home";
        };
      };
    };
    bpool = {
      type = "zpool";
      mode = "mirror";
      rootFsOptions = {
        acltype = "posixacl";
        compression = "lz4";
        devices = "off";
        normalization = "formD";
        relatime = "on";
        xattr = "sa";
        canmount = "off";
      };

      options = {
        compatibility = "grub2";
        ashift = "12";
        autotrim = "on";
      };
      datasets = {
        "boot" = {
          zfs_type = "filesystem";
          options.mountpoint = "legacy";
          mountpoint = "/boot";
        };
      };
    };
  };
}