Added server configs.

modules/hosts/server/configuration.nix

@@ -0,0 +1,36 @@
+{self, inputs, ...}: {
+  flake.nixosModules.serverConfig = { pkgs, ... }: {
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "lily-server";
+  networking.networkmanager.enable = true;
+
+  services.displayManager.sddm.enable = true;
+  services.desktopManager.plasma6.enable = true;
+
+  services.openssh = {
+    enable = true;
+    settings = {
+      PasswordAuthentication = false;
+      PermitRootLogin = "no";
+      X11Forwarding = false;
+    };
+  };
+
+    nixpkgs.config.allowUnfree = true;
+    networking.firewall.allowedTCPPorts = [ 22 80 443 9001 9002 ];
+
+    nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+    programs.firefox.enable = true;
+    environment.systemPackages = [ 
+      pkgs.vim
+
+      self.packages.${pkgs.stdenv.hostPlatform.system}.nh
+
+    ];
+    system.stateVersion = "24.11";
+  };
+}
+