let
  espPartition = {
    type = "filesystem";
    format = "vfat";
    mountpoint = "/boot";
    mountOptions = [
      "default"
    ];
  };
  cryptroot = {
    type = "luks";
    name = "cryptroot";
    content = {
      type = "btrfs";
      extraArgs = [
        "-L"
        "nixos"
        "-f"
      ];
      subvolumes = {
        "/root" = {
          mountpoint = "/";
          mountOptions = [
            "subvol=root"
            "compress=zstd"
            "noatime"
          ];
        };
        "/root-blank" = {
          mountOptions = [
            "subvol=root-blank"
            "nodatacow"
            "noatime"
          ];
        };
        "/home" = {
          mountpoint = "/home";
          mountOptions = [
            "subvol=home"
            "compress=zstd"
            "noatime"
          ];
        };
        "/nix" = {
          mountpoint = "/nix";
          mountOptions = [
            "subvol=nix"
            "compress=zstd"
            "noatime"
          ];
        };
        "/persist" = {
          mountpoint = "/persist";
          mountOptions = [
            "subvol=persist"
            "compress=zstd"
            "noatime"
          ];
        };
        "/lib" = {
          mountpoint = "/var/lib";
          mountOptions = [
            "subvol=lib"
            "compress=zstd"
            "noatime"
          ];
        };
        "/log" = {
          mountpoint = "/var/log";
          mountOptions = [
            "subvol=log"
            "compress=zstd"
            "noatime"
          ];
        };
      };
    };
  };
in
{
  disko.devices.disk.vm-disk = {
    type = "disk";
    device = "/dev/vda";
    content = {
      type = "gpt";
      partitions = {
        ESP = {
          label = "boot";
          name = "ESP";
          size = "1G";
          type = "EF00";
          content = espPartition;
        };
        luks = {
          size = "100%";
          label = "luks";
          content = cryptroot;
        };
      };
    };
  };

  fileSystems."/var/log".neededForBoot = true;
  fileSystems."/var/lib".neededForBoot = true;
  fileSystems."/persist".neededForBoot = true;
}