{ pkgs, lib, config, ... }:
{
  hardware.cpu.amd.updateMicrocode = true;

  boot.kernel = {
    sysctl = {
      "vm.swappiness" = 10;
      "vm.vfs_cache_pressure" = 50;
    };
  };

  boot.loader = {
    grub = {
      enable = true;
      version = 2;
      copyKernels = true;
      # efiSupport = true;
      devices = [
        "/dev/disk/by-id/ata-Samsung_SSD_840_EVO_250GB_S1DBNSAF340110R"
      ];
      /*
      mirroredBoots = [
        { devices = [ "${disk_id}" ];
          path    = "/boot${bootnum}";
        }
      ];
      */
    };
    /*
    efi = {
      canTouchEfiVariables = true;
      efiSysMountPoint = "/boot/efi";
      efiInstallAsRemovable = false;
    };
    */
  };

  boot.initrd = {
    availableKernelModules = [
      "ahci"
      "ehci_pci"
      "sd_mod"
      "uas"
      # Ethernet driver
      "igb"
      # Made the AES modules available at initrd,
      # to speedup the deciphering of the root.
      "aes_x86_64"
      "aesni_intel"
      "cryptd"
    ];
    kernelModules = [ ];

  };
  boot.kernelModules = [ ];
  boot.extraModulePackages = [ ];
  boot.kernelParams = [
    "gfxpayload=text"
    #"console=tty0"
    "console=ttyS0,115200n8"
    "zfs.zfs_arc_max=262144000" # 250Mo
  ];

  fileSystems."/boot" =
    { device = "/dev/disk/by-uuid/dc3c5387-17d2-43b3-bfa2-bf73afacca07";
      fsType = "ext2";
    };

  fileSystems."/boot/efi" =
    { device = "/dev/disk/by-uuid/62E6-E65F";
      fsType = "vfat";
    };

  swapDevices =
    [ { device = "/dev/disk/by-partuuid/6b1eaa35-776b-4e60-b21e-7bcee535dd8b";
        randomEncryption = {
          enable = true;
          cipher = "aes-xts-plain64";
          source = "/dev/urandom";
        };
      }
    ];

  nix.maxJobs = lib.mkDefault 4;
  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";

  environment = {
    systemPackages = with pkgs; [
      pciutils
      flashrom
    ];
  };
}