introduce new host

systems/x86_64-linux/loptland/default.nix

@@ -0,0 +1,37 @@
+{
+  lib,
+  namespace,
+  pkgs,
+  ...
+}:
+let
+  inherit (lib.${namespace}) enabled;
+in
+{
+  imports = [ ./hardware.nix ];
+
+  services.openssh = {
+    enable = true;
+    settings = {
+      PasswordAuthentication = false;
+      KbdInteractiveAuthentication = false;
+    };
+  };
+
+  ${namespace} = {
+    submodules = {
+      basics = enabled;
+    };
+
+    services = {
+      factorio-server = enabled;
+    };
+
+    user.trustedPublicKeys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHFrDiO5+vMfD5MimkzN32iw3MnSMLZ0mHvOrHVVmLD0"
+    ];
+
+  };
+
+  system.stateVersion = "24.11";
+}

systems/x86_64-linux/loptland/hardware.nix

@@ -0,0 +1,35 @@
+{
+  config,
+  lib,
+  pkgs,
+  modulesPath,
+  ...
+}:
+
+{
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
+
+  boot.initrd.availableKernelModules = [
+    "ata_piix"
+    "uhci_hcd"
+    "virtio_pci"
+    "sr_mod"
+    "virtio_blk"
+  ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/nixos";
+    fsType = "ext4";
+  };
+
+  swapDevices = [ ];
+
+  networking.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostplatform = lib.mkDefault "x86_64-linux";
+}