{
  fileSystems."/" = {
    device = "none";
    fsType = "tmpfs";
    options = ["relatime" "mode=755" "size=75%"];
  };

  fileSystems."/boot" = {
    device = "/dev/disk/by-label/BOOT";
    fsType = "vfat";
  };

  fileSystems."/nix" = {
    device = "/dev/disk/by-label/NIXOS";
    fsType = "btrfs";
    options = ["compress=zstd"];
  };

  fileSystems."/swap" = {
    device = "/dev/disk/by-label/NIXOS";
    fsType = "btrfs";
    options = ["noatime" "subvol=swap"];
  };

  swapDevices = [{device = "/swap/swapfile";}];
}