Flake parts with x64 and ARM support for devshell on both Linux and Mac

nix/system/hardware.nix

@@ -0,0 +1,42 @@
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot = {
+    initrd = {
+      availableKernelModules =
+        [ "xhci_pci" "ahci" "nvme" "usb_storage" "usbhid" "sd_mod" "sdhci_pci" ];
+      kernelModules = [ ];
+    };
+    kernelModules = [ "kvm-intel" ];
+    extraModulePackages = [ ];
+  };
+
+  fileSystems = {
+    "/" = {
+      device = "/dev/disk/by-label/NIXROOT";
+      fsType = "ext4";
+    };
+
+    "/nix" = {
+      device = "/dev/disk/by-label/SDA-EXT";
+      fsType = "ext4";
+      neededForBoot = true;
+      options = [ "noatime" ];
+    };
+
+    "/boot" = {
+      device = "/dev/disk/by-label/NIXBOOT";
+      fsType = "vfat";
+    };
+  };
+
+  swapDevices = [ ];
+
+  networking.useDHCP = lib.mkDefault true;
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  hardware.cpu.intel.updateMicrocode =
+    lib.mkDefault config.hardware.enableRedistributableFirmware;
+}