Add jump host

hosts/jump/configuration.nix

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+{ config, lib, pkgs, ... }:
+
+{
+  imports =
+    [
+      ../template/hardware-configuration.nix
+      ../../system
+    ];
+
+  nixpkgs.config.allowUnfree = true;
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.device = "/dev/sda";
+
+  networking.hostName = "jump";
+  networking.domain = "home.2rjus.net";
+  networking.useNetworkd = true;
+  networking.useDHCP = false;
+  services.resolved.enable = false;
+  networking.nameservers = [
+    "10.69.13.5"
+    "10.69.13.6"
+  ];
+
+  systemd.network.enable = true;
+  systemd.network.networks."ens18" = {
+    matchConfig.Name = "ens18";
+    address = [
+      "10.69.13.10/24"
+    ];
+    routes = [
+      { routeConfig.Gateway = "10.69.13.1"; }
+    ];
+    linkConfig.RequiredForOnline = "routable";
+  };
+  time.timeZone = "Europe/Oslo";
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  environment.systemPackages = with pkgs; [
+    vim
+    wget
+    git
+  ];
+
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  networking.firewall.enable = false;
+
+  system.stateVersion = "23.11"; # Did you read the comment?
+}
+

hosts/jump/default.nix

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+{ ... }: {
+  imports = [
+    ./configuration.nix
+  ];
+}

hosts/jump/hardware-configuration.nix

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+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [
+      (modulesPath + "/profiles/qemu-guest.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  # boot.kernelModules = [ ];
+  # boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    {
+      device = "/dev/disk/by-uuid/6889aba9-61ed-4687-ab10-e5cf4017ac8d";
+      fsType = "xfs";
+    };
+
+  fileSystems."/boot" =
+    {
+      device = "/dev/disk/by-uuid/BC07-3B7A";
+      fsType = "vfat";
+    };
+
+  swapDevices =
+    [{ device = "/dev/disk/by-uuid/64e5757b-6625-4dd2-aa2a-66ca93444d23"; }];
+
+  # 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.interfaces.ens18.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}