{
  pkgs,
  lib,
  config,
  ...
}:
with lib;
let
  cfg = config.global.fs;
in
{
  options.global.fs.bcachefs = {
    options = mkOption {
      type = with types; listOf str;
      default = [
        "noatime"
        "compression=zstd"
      ];
      description = "bcachefs mount options";
    };
  };

  config = mkIf (cfg.type == "bcachefs") {
    fileSystems."/nix" = {
      inherit (cfg.bcachefs) options;
      device = "/dev/disk/by-uuid/${cfg.store}";
      fsType = "bcachefs";
    };
  };
}