{ pkgs, lib, ... }: {
  boot = {
    # kernelModules = [ "snd-seq" "snd-rawmidi" ];
    # kernel.sysctl = { "vm.swappiness" = 10; "fs.inotify.max_user_watches" = 524288; };
    # kernelParams = [ "threadirq" ];

    # kernelPatches = lib.singleton {
    #   name = "pro_audio";
    #   patch = null;
    #   extraConfig = ''
    #     PREEMPT_RT y
    #     PREEMPT y
    #     IOSCHED_DEADLINE y
    #     DEFAULT_DEADLINE y
    #     DEFAULT_IOSCHED "deadline"
    #     HPET_TIMER y
    #     CPU_FREQ n
    #     TREE_RCU_TRACE n
    #   '';
    # };

    # postBootCommands = ''
    #   echo 2048 > /sys/class/rtc/rtc0/max_user_freq
    #   echo 2048 > /proc/sys/dev/hpet/max-user-freq
    #   # setpci -v -d *:* latency_timer=b0
    #   # setpci -v -s $00:1b.0 latency_timer=ff
    # '';
    # The SOUND_CARD_PCI_ID can be obtained like so:
    # $ lspci ¦ grep -i audio
  };

  # powerManagement.cpuFreqGovernor = "performance";

  # fileSystems."/" = { options = "noatime errors=remount-ro"; };

  security.pam.loginLimits = [
    { domain = "@audio"; item = "memlock"; type = "-"; value = "unlimited"; }
    { domain = "@audio"; item = "rtprio"; type = "-"; value = "99"; }
    { domain = "@audio"; item = "nofile"; type = "soft"; value = "99999"; }
    { domain = "@audio"; item = "nofile"; type = "hard"; value = "99999"; }
  ];

  # services = {
  #   udev = {
  #     packages = [ pkgs.ffado ]; # If you have a FireWire audio interface
  #     extraRules = ''
  #       KERNEL=="rtc0", GROUP="audio"
  #       KERNEL=="hpet", GROUP="audio"
  #     '';
  #   };
  #   cron.enable = false;
  # };

  environment.shellInit = ''
    export VST_PATH=/nix/var/nix/profiles/default/lib/vst:/var/run/current-system/sw/lib/vst:~/.vst
    export LXVST_PATH=/nix/var/nix/profiles/default/lib/lxvst:/var/run/current-system/sw/lib/lxvst:~/.lxvst
    export LADSPA_PATH=/nix/var/nix/profiles/default/lib/ladspa:/var/run/current-system/sw/lib/ladspa:~/.ladspa
    export LV2_PATH=/nix/var/nix/profiles/default/lib/lv2:/var/run/current-system/sw/lib/lv2:~/.lv2
    export DSSI_PATH=/nix/var/nix/profiles/default/lib/dssi:/var/run/current-system/sw/lib/dssi:~/.dssi
  '';
}