feat: Convert to a multi-host flake

hosts/anvil/default.nix

@@ -0,0 +1,24 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    ./hardware-configuration.nix
+    # ./nginx.nix  # TODO
+  ];
+
+  networking.hostName = "anvil";
+  system.stateVersion = "24.11";
+  networking.firewall.allowedTCPPorts = [ 8384 ];
+  services.pulseaudio.enable = false;
+
+  boot.initrd.luks.devices."luks-1f261d60-dfb4-4f63-9c77-f331a007108b".device = "/dev/disk/by-uuid/1f261d60-dfb4-4f63-9c77-f331a007108b";
+
+  services.openssh = {
+    enable = true;
+    settings = {
+      PermitRootLogin = "no";
+      PasswordAuthentication = true;
+    };
+  };
+
+}

hosts/anvil/hardware-configuration.nix

@@ -0,0 +1,20 @@
+# TODO: Replace with actual hardware-configuration.nix from anvil machine
+# Run on anvil: nixos-generate-config --show-hardware-config
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  # Placeholder filesystem - replace with actual values from anvil
+  fileSystems."/" = {
+    device = "/dev/disk/by-uuid/PLACEHOLDER";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot" = {
+    device = "/dev/disk/by-uuid/PLACEHOLDER";
+    fsType = "vfat";
+  };
+}

hosts/anvil/nginx.nix

@@ -0,0 +1,5 @@
+# TODO: Configure anvil's nginx
+{ config, pkgs, lib, ... }:
+
+{
+}