{ ... }:

{
  fileSystems."/" = {
    options = [ "subvol=@" "compress=zstd" "space_cache=v2" "noatime" "lazytime" "ssd" "discard=async" ];
  };

  fileSystems."/home" = {
    options = [ "subvol=@home" "compress=zstd" "space_cache=v2" "noatime" "lazytime" "ssd" "discard=async" ];
  };

  fileSystems."/var/log" = {
    options = [ "subvol=@log" "compress=zstd" "space_cache=v2" "noatime" "lazytime" "ssd" "discard=async" ];
  };

  fileSystems."/swap" = {
    options = [ "subvol=@swap" "noatime" "ssd" "discard=async" ];
  };

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

  boot.kernel.sysctl = {
    "vm.dirty_ratio" = 10;
    "vm.dirty_background_ratio" = 5;
    "vm.swappiness" = 10;
  };
}