feat(flake.nix): convert flake to snowfall-lib

systems/x86_64-linux/nemesis/default.nix

@@ -0,0 +1,37 @@
+{ config, lib, pkgs, modulesPath, ... }:
+{
+  imports =
+    [ 
+      (modulesPath + "/installer/scan/not-detected.nix")
+      (import ./disko.nix {inherit lib; device = "/dev/disk/by-id/nvme-CT2000P3SSD8_2325E6E77434";})
+    ];
+
+  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  networking.useDHCP = lib.mkDefault true;
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+  networking.hostName = "nemesis"; # Define your hostname.
+  networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
+  time.timeZone = "Asia/Singapore";
+  i18n.defaultLocale = "en_US.UTF-8";
+  services.pipewire = {
+    enable = true;
+    pulse.enable = true;
+  };
+  users.users.rafiq = {
+    isNormalUser = true;
+    initialPassword = "1";
+    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+    packages = with pkgs; [
+      git
+      neovim
+    ];
+  };
+  nix.settings.experimental-features = ["nix-command" "flakes"];
+  system.stateVersion = "25.05"; # Did you read the comment?
+}
+