feat: add server configuration

hosts/homelab/configuration.nix

@@ -0,0 +1,29 @@
+{
+  pkgs,
+  lib,
+  ...
+}: {
+  boot = {
+    # Use grub as bootloader as it works better with mdadm
+    loader.grub.enable = true;
+    loader.systemd-boot.enable = lib.mkForce false;
+
+    # HACK: silence mdadm warning on missing MAILADDR or PROGRAM setting
+    swraid.mdadmConf = ''
+      PROGRAM ${pkgs.coreutils}/bin/true
+    '';
+  };
+
+  # Enable OpenGL
+  hardware.graphics = {
+    enable = true;
+  };
+
+  # Load nvidia driver for Xorg and Wayland
+  services.xserver.videoDrivers = ["nvidia"];
+
+  hardware.nvidia = {
+    open = true;
+    modesetting.enable = true;
+  };
+}