diff --git a/hosts/clerie-backup/configuration.nix b/hosts/clerie-backup/configuration.nix
new file mode 100644
index 0000000..3a8f7ca
--- /dev/null
+++ b/hosts/clerie-backup/configuration.nix
@@ -0,0 +1,36 @@
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [
+      ./hardware-configuration.nix
+      ../../configuration/common
+      ../../configuration/proxmox-vm
+    ];
+
+  boot.loader.grub.enable = true;
+  boot.loader.grub.version = 2;
+  boot.loader.grub.device = "/dev/vda";
+
+  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
+
+  networking.hostName = "clerie-backup";
+
+  networking.useDHCP = false;
+  networking.interfaces.ens18.ipv6.addresses = [ { address = "2001:638:904:ffc1::6"; prefixLength = 64; } ];
+  networking.defaultGateway6 = { address = "2001:638:904:ffc1::1"; interface = "ens18"; };
+  networking.nameservers = [ "2001:638:904:ffcc::3" "2001:638:904:ffcc::4" "141.24.40.3" "141.24.40.4" ];
+
+  services.borgbackup.repos = {
+    cosima = {
+      authorizedKeys = [ "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC2x5h7F3rRy8G8r6twd549TRyIB/WsKOxJWIcUbAc3FFOIvbtXyT/zR91K58usZzcVdZjobyLa9aNfJNvA3ez2dO0PaqoRLg9Bgq44/bd6492N4ALROAgbmMwuTwA3gq2TYrWUCICGlYvBv7eVoSKrGECw4IZkAgoXu/pucz9yi10ccsu+cfZxuBRZtn5QmRIo8uhyGcjhtk9obB0JkUrGrubJRhxUazEH5j+bn/DHmYpmIyRV/82YvA+GR3B/PODF0fi7sFoeBQefCPTCHftYROB1P7G70wvO9rC9xTWSGPVeM7PmtArRKxOX89yqhVuHr2hWrPLLFMbY3wMNVKD5 cosima" ];
+      path = "/mnt/clerie-backup/cosima";
+    };
+    krypton = {
+      authorizedKeys = [ "ssh-rsa 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 clerie@krypton" ];
+      path = "/mnt/clerie-backup/krypton";
+    };
+  };
+
+  system.stateVersion = "21.03";
+}
diff --git a/hosts/clerie-backup/hardware-configuration.nix b/hosts/clerie-backup/hardware-configuration.nix
new file mode 100644
index 0000000..bee617a
--- /dev/null
+++ b/hosts/clerie-backup/hardware-configuration.nix
@@ -0,0 +1,28 @@
+# 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" "sr_mod" "virtio_blk" ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/155f19d9-9293-4b6d-beed-2e8a39ef3c71";
+      fsType = "ext4";
+    };
+
+  fileSystems."/mnt/clerie-backup" =
+    { device = "/dev/disk/by-uuid/69de70f0-9b46-47f3-9ac7-348f57934d55";
+      fsType = "ext4";
+    };
+
+  swapDevices = [ ];
+
+}