added mc2

systems/mc2/configuration.nix

@@ -0,0 +1,15 @@
+{ config, lib, pkgs, ... }:
+
+{
+  imports =
+    [
+      ./hardware-configuration.nix
+      ./modules/generic.nix
+    ];
+
+  system.copySystemConfiguration = true;
+  system.stateVersion = "25.05";
+
+}
+
+# vim: set et ts=2 sw=2 ai:

systems/mc2/hardware-configuration.nix

@@ -0,0 +1,45 @@
+# 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.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/profiles/qemu-guest.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_blk" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  boot.loader.grub.enable = true;
+  boot.loader.grub.device = "/dev/vdb";
+
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-label/nixos";
+      fsType = "btrfs";
+      options = [ "compress-force=zstd:3" ];
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-label/boot";
+      fsType = "ext4";
+    };
+
+  #swapDevices = [ ];
+
+  # 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.ens3.useDHCP = lib.mkDefault true;
+
+  networking.hostName = "mc2";
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}
+
+# vim: set et ts=2 sw=2 ai: