gistfile1.txt

  boot = {
    tmpOnTmpfs = false;
    loader.grub = {
      memtest86.enable = true;
      version = 2;
      enable = true;
      device = "/dev/sda";
    };
    initrd.availableKernelModules = [ ];
    kernelParams = [
      "audit=0"
      #"console=hvc0"
      "boot.shell_on_fail"
      #"vm.min_free_kbytes=4194304"
      "zfs.zio_taskq_batch_pct=50"
      "spl.spl_taskq_thread_bind=1"
      "isolcpus=0"
    ];
    extraModprobeConfig = ''
      options snd_hda_intel enable=1,0
      install dccp /run/current-system/sw/bin/false
    '';
    extraModulePackages = [ config.boot.kernelPackages.v4l2loopback ];
    zfs.enableUnstable = true;
  };

boot.extraModProbeConfig = ''
install dccp /run/current-system/sw/bin/false
'';