refactor folder structure

hosts/nb/hardware-configuration.nix

@@ -0,0 +1,68 @@
+# 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.loader.systemd-boot = {
+    enable = true;
+    configurationLimit = 5;
+  };
+  boot.loader.efi.canTouchEfiVariables = true;
+  boot.initrd.availableKernelModules = [ "vfat" "xhci_pci" "thunderbolt" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ "kvm-amd" ];
+  boot.kernelModules = [ "amdgpu" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    {
+      device = "none";
+      fsType = "tmpfs";
+      options = [ "size=16G" "mode=755" ];
+    };
+
+  fileSystems."/nix" =
+    { device = "/dev/disk/by-uuid/856e1ebe-832f-422d-8d91-d43a5d852abb";
+      fsType = "f2fs";
+    };
+
+  boot.initrd = {
+    luks.devices."enc" = {
+      crypttabExtraOpts = [ "fido2-device=auto" ];
+      device = "/dev/disk/by-uuid/08897ecb-23ce-4352-a1fc-fa442b9e0f72";
+    };
+    systemd.enable = true;
+  };
+
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/1521-B173";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  # 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.wlp52s0.useDHCP = lib.mkDefault true;
+
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+
+  hardware.opengl = {
+    enable = true;
+    extraPackages = with pkgs; [
+      vaapiVdpau
+      libvdpau-va-gl
+      libva
+      libva-utils
+    ];
+  };
+}