nixos-config/hosts/nbf5/hardware-configuration.nix

#
# Hardware settings for Teclast F5 10" Laptop
# NixOS @ sda2
#
# flake.nix
#  └─ ./hosts
#      └─ ./laptop
#          └─ 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 = [ "ahci" "xhci_pci" "usb_storage" "usbhid" "sd_mod" "sdhci_pci" "rtsx_usb_sdmmc" ];
		  kernelModules = [ "i915" "kvm_intel" ];
		  systemd.enable = true;
		  luks = {
			  devices."root" = {
				  device = "/dev/disk/by-uuid/75eccc7f-30b0-4fe8-8f82-90edaf284cd5";
				  allowDiscards = true;
			  };
		  };
	  };

	  kernelModules = [ "kvm-intel" ];
	  extraModprobeConfig = ''
		  options i915 enable_guc=3 enable_fbc=1 fastboot=1
		  '';
	  kernelParams = [ "mitigations=off" "luks.options=fido2-device=auto" ];
	  tmp.useTmpfs = true;
  };

  zramSwap.enable = true;

  services.btrfs.autoScrub = {
    enable = true;
    interval = "monthly";
    fileSystems = [
      "/"
    ];
  };

  services.btrbk = {
      instances = {
          hf = {
              onCalendar = "hourly";
              settings = {
                  incremental = "yes";
                  snapshot_create = "ondemand";
                  snapshot_dir = "@snapshots";
                  timestamp_format = "long";

                  snapshot_preserve = "2m 2w 5d 5h";
                  snapshot_preserve_min = "latest";
                
                  volume =  {
                      "/mnt/snapshots/root" = {
                          snapshot_create = "always";
                          subvolume = {
                              "@home" = {};
                          };
                      };
                  };
              };
          };
      };
  };

  fileSystems."/" =
    { device = "/dev/mapper/root";
      fsType = "btrfs";
      options = [ "compress=zstd,space_cache=v2,ssd,noatime,subvol=@,discard=async" ];
    };

  fileSystems."/home" =
    { device = "/dev/mapper/root";
      fsType = "btrfs";
      options = [ "compress=zstd,space_cache=v2,ssd,noatime,subvol=@home,discard=async" ];
    };

  fileSystems."/srv" =
    { device = "/dev/mapper/root";
      fsType = "btrfs";
      options = [ "compress=zstd,space_cache=v2,ssd,noatime,subvol=@srv,discard=async" ];
    };

  fileSystems."/opt" =
    { device = "/dev/mapper/root";
      fsType = "btrfs";
      options = [ "compress=zstd,space_cache=v2,ssd,noatime,subvol=@opt,discard=async" ];
    };

  fileSystems."/nix" =
    { device = "/dev/mapper/root";
      fsType = "btrfs";
      options = [ "compress=zstd,space_cache=v2,ssd,noatime,subvol=@nix,discard=async" ];
    };

  fileSystems."/mnt/snapshots/root" =
    { device = "/dev/mapper/root";
      fsType = "btrfs";
      options = [ "compress=zstd,space_cache=v2,ssd,noatime,subvolid=5,discard=async" ];
    };

  fileSystems."/boot" =
    { device = "/dev/disk/by-label/BOOT";
      fsType = "vfat";
    };

  fileSystems."/mnt/Pluto" =
    { device = "jupiter:/Pluto";
      fsType = "nfs";
      options = [ "noauto,users,x-systemd.automount,x-systemd.device-timeout=10,soft,timeo=14,x-systemd.idle-timeout=1min,sec=sys,exec,nfsvers=4.2" ];
    };

  fileSystems."/mnt/Mars" =
    { device = "jupiter:/Mars";
      fsType = "nfs";
      options = [ "noauto,users,x-systemd.automount,x-systemd.device-timeout=10,soft,timeo=14,x-systemd.idle-timeout=1min,sec=sys,exec,nfsvers=4.2" ];
    };


  swapDevices = [ ];
  

  networking = {
    useDHCP = false;                        # Deprecated
    hostName = "nbf5";
    wireless.iwd.enable = true;
    networkmanager = {
      enable = true;
      wifi = {
        backend = "iwd";
        powersave = true;
      };
    };
    interfaces = {
      wlan0 = {
        useDHCP = true;                     # For versatility sake, manually edit IP on nm-applet.
        #ipv4.addresses = [ {
        #    address = "192.168.0.51";
        #    prefixLength = 24;
        #} ];
      };
    };
    #defaultGateway = "192.168.0.1";
    #nameservers = [ "192.168.0.4" ];
    firewall = {
      checkReversePath = "loose";
    #  enable = false;
    #  #allowedUDPPorts = [ 53 67 ];
    #  #allowedTCPPorts = [ 53 80 443 9443 ];
    };
  };

  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
  powerManagement = {
    cpuFreqGovernor = lib.mkDefault "schedutil";
    powertop.enable = true;    
  };
}