{ _, ... }:
{
  # RECOMMENDED BTRFS SUBVOLUME LAYOUT
  # /home
  # /home/.snapshots (needed if snapper on home dir to be enabled)
  # /srv
  # /var/lib/portables
  # /var/lib/machines
  # /tmp
  # /var/tmp
  #
  # REQUIRED PARTLABELS (can be set in parted or other tools NOT!!! FILESYSTEM LABEL!)
  # /     - NIXOS
  # /boot - ESP
  # swap  - SWAP

  fileSystems = {
    "/" = {
      device = "/dev/disk/by-partlabel/NIXOS";
      fsType = "btrfs";
    };

    "/boot" = {
      device = "/dev/disk/by-partlabel/ESP";
      fsType = "vfat";
      options = [
        "fmask=0077"
        "dmask=0077"
      ];
    };
  };

  swapDevices = [
    { device = "/dev/disk/by-partlabel/SWAP"; }
  ];
}