{
  disko.devices = {
    disk = {
      main = {
        type = "disk";
        device = "/dev/nvme0n1";
        content = {
          type = "gpt";
          partitions = {
            ESP = {
              label = "boot";
              name = "ESP";
              size = "512M";
              type = "EF00";
              content = {
                type = "filesystem";
                format = "vfat";
                mountpoint = "/boot";
                mountOptions = [
                  "defaults"
                ];
              };
            };
            luks = {
              size = "100%";
              label = "luks";
              content = {
                type = "luks";
                name = "cryptroot";
                extraOpenArgs = [
                  "--allow-discards"
                  "--perf-no_read_workqueue"
                  "--perf-no_write_workqueue"

                ];
                # https://0pointer.net/blog/unlocking-luks2-volumes-with-tpm2-fido2-pkcs11-security-hardware-on-systemd-248.html
                # settings = {crypttabExtraOpts = ["fido2-device=auto" "token-timeout=10"];};
                content = {
                  type = "btrfs";
                  extraArgs = ["-L" "nixos" "-f"];
                  subvolumes = {
#                     "/root" = {
#                       mountpoint = "/";
#                       mountOptions = ["subvol=root" "compress=zstd" "noatime"];
#                     };
                    "/home" = {
                      mountpoint = "/persist/home";
                      mountOptions = ["subvol=home" "compress=zstd" "noatime"];
                    };
                    "/nix" = {
                      mountpoint = "/persist/nix";
                      mountOptions = ["subvol=nix" "compress=zstd" "noatime"];
                    };
                    "/persist" = {
                      mountpoint = "/persist";
                      mountOptions = ["subvol=persist" "compress=zstd" "noatime"];
                    };
                    "/log" = {
                      mountpoint = "/persist/var/log";
                      mountOptions = ["subvol=log" "compress=zstd" "noatime"];
                    };
                    "/music" = {
                      mountpoint = "/persist/var/lib/Music";
                      mountOptions = ["subvol=music" "noatime"];
                    };
                    "/movies" = {
                      mountpoint = "/persist/var/lib/movies";
                      mountOptions = ["subvol=movies" "noatime"];
                    };
                    "/swap" = {
                      mountpoint = "/persist/swap";
                      swap.swapfile.size = "32G";
                    };
                  };
                };
              };
            };
          };
        };
      };
    };
  };

  fileSystems."/" = {
    device = "none";
    fsType = "tmpfs";
    options = [ "defaults" "size=25%" "mode=755" ];
  };
  # fileSystems."/mnt/Backup" = {
  #   device = "/dev/disk/by-label/Backup";
  #   fsType = "ext4";
  # };
  fileSystems."/persist".neededForBoot = true;
  fileSystems."/var/log".neededForBoot = true;

#     boot.initrd.postResumeCommands = lib.mkAfter ''
# mkdir /btrfs_tmp
# mount /dev/disk/by-label/luks /btrfs_tmp
# if [[ -e /btrfs_tmp/root ]]; then
#     mkdir -p /btrfs_tmp/old_roots
#     timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
#     mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
# fi
#
# delete_subvolume_recursively() {
#     IFS=$'\n'
#     for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
#         delete_subvolume_recursively "/btrfs_tmp/$i"
#     done
#     btrfs subvolume delete "$1"
# }
#
# for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
#     delete_subvolume_recursively "$i"
# done
# btrfs subvolume create /btrfs_tmp/root
# umount /btrfs_tmp
# '';

}