nixos-config/configurations/host/Old-materusPC/hardware-configuration.nix

# Do not modify this file!  It was generated by ‘nixos-generate-config’
# and may be overwritten by future invocations.  Please make changes
# to /etc/nixos/configuration.nix instead.
{
  config,
  lib,
  pkgs,
  modulesPath,
  ...
}:

{
  imports = [
    (modulesPath + "/installer/scan/not-detected.nix")
  ];

  boot.initrd.availableKernelModules = [
    "xhci_pci"
    "ehci_pci"
    "ahci"
    "usbhid"
    "usb_storage"
    "sd_mod"
  ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [
    "kvm-intel"
    "vfio-pci"
  ];
  boot.extraModulePackages = [ ];
  boot.kernel.sysctl = {
    "vm.swappiness" = 10;
  };
  boot.kernelParams = [
    "ibt=off"
    "intel_iommu=on"
    "iommu=pt"
    "pcie_acs_override=downstream,multifunction"
  ];
  fileSystems."/" = {
    device = "/dev/disk/by-label/NixOS_Root";
    fsType = "btrfs";
    options = [
      "subvol=@"
      "noatime"
      "ssd"
      "space_cache=v2"
    ];
  };

  fileSystems."/boot" = {
    device = "/dev/disk/by-label/NixOS_Root";
    fsType = "btrfs";
    options = [
      "subvol=@boot"
      "ssd"
    ];
  };

  fileSystems."/materus" = {
    device = "/dev/disk/by-label/NixOS_Root";
    fsType = "btrfs";
    options = [
      "subvol=@materus"
      "noatime"
      "compress=zstd"
      "ssd"
      "space_cache=v2"
    ];
    neededForBoot = true;

  };

  fileSystems."/nix" = {
    device = "/dev/disk/by-label/NixOS_Root";
    fsType = "btrfs";
    options = [
      "subvol=@nix"
      "noatime"
      "compress=zstd"
      "ssd"
      "space_cache=v2"
    ];
  };

  fileSystems."/home" = {
    device = "/dev/disk/by-label/NixOS_Home";
    fsType = "btrfs";
    options = [
      "subvol=@home"
      "nossd"
      "noatime"
      "compress=zstd"
      "space_cache=v2"
      "autodefrag"
    ];
  };

  fileSystems."/materus/data" = {
    device = "/dev/disk/by-label/NixOS_Home";
    fsType = "btrfs";
    options = [
      "subvol=@data"
      "nossd"
      "noatime"
      "compress=zstd"
      "space_cache=v2"
      "autodefrag"
    ];
  };

  fileSystems."/boot/efi" = {
    device = "/dev/disk/by-uuid/A5C2-31D1";
    fsType = "vfat";
  };

  zramSwap = {
    enable = true;
    memoryPercent = 50;
    priority = 10;
  };

  swapDevices = [
    {
      device = "/var/lib/swapfile";
      size = 32 * 1024;
      priority = 5;
    }
    {
      device = "/dev/disk/by-label/NixOS_Swap";
      priority = 0;
    }
  ];

  fileSystems."/etc/nixos" = {
    device = "/materus/config/nixos-config";
    fsType = "none";
    options = [ "bind" ];
    depends = [ "/materus" ];
  };

  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
  # (the default) this is the recommended approach. When using systemd-networkd it's
  # still possible to use this option, but it's recommended to use it in conjunction
  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
  networking.useDHCP = lib.mkDefault true;
  # networking.interfaces.enp3s0.useDHCP = lib.mkDefault true;
  # networking.interfaces.wlp6s0.useDHCP = lib.mkDefault true;

  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
  hardware.cpu.intel.updateMicrocode = lib.mkForce true;
}