feat: Flake | revamp entire flake (#1)

Reviewed-on: #1

hosts/nixos/rihla/hardware-configuration.nix

@@ -0,0 +1,47 @@
+# 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.
+{
+  pkgs,
+  config,
+  lib,
+  modulesPath,
+  ...
+}: {
+  imports = [(modulesPath + "/installer/scan/not-detected.nix")];
+
+  boot = {
+    initrd = {
+      availableKernelModules = [
+        "nvme"
+        "xhci_pci"
+        "ahci"
+        "usbhid"
+        "thunderbolt"
+        "usb_storage"
+        "sd_mod"
+      ];
+      kernelModules = [];
+    };
+
+    kernelModules = ["kvm-amd"];
+    extraModulePackages = [];
+  };
+
+  # 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.enp193s0f3u2.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp1s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware = {
+    cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+    graphics = {
+      enable = true;
+      extraPackages = with pkgs; [amdvlk];
+    };
+  };
+}