nixos/hosts/mu/hardware.nix

{ config, lib, pkgs, modulesPath, ... }: {
  imports =
    [
      (modulesPath + "/installer/scan/not-detected.nix")
    ];

  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "nvme" "usb_storage" "sd_mod" "sdhci_pci" ];
  boot.initrd.kernelModules = [ "dm-snapshot" ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];


  # https://elis.nu/blog/2020/05/nixos-tmpfs-as-root/
  fileSystems."/" = {
    device = "none";
    fsType = "tmpfs";
    options = [ "defaults" "size=2G" "mode=755" ]; # mode=755 so only root can write to those files
  };
  fileSystems."/boot" = {
    device = "/dev/disk/by-label/BOOT";
    fsType = "vfat";
  };
  fileSystems."/nix" = {
    device = "/dev/disk/by-label/nix";
    fsType = "ext4";
  };

  swapDevices = [
    {
      device = "/nix/persist/swapfile";
      size = 32 * 1024; # 32 GiB
    }
  ];

  # Enables DHCP on all ethernet and wireless LAN interfaces.
  networking.useDHCP = lib.mkDefault true;

  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
  powerManagement.cpuFreqGovernor = lib.mkDefault "performance";
  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

  # Disable jet engine
  services.thinkfan = {
    enable = true;
    levels = [
      [ 0 0 70 ]
      [ 1 65 75 ]
      [ 2 70 80 ]
      [ 3 75 85 ]
      [ 6 80 90 ]
      [ 7 90 95 ]
      [ "level auto" 95 32767 ]
    ];
  };
  boot.extraModprobeConfig = ''
    options thinkpad_acpi fan_control=1 experimental=1
  '';
}