diff --git a/data/backup/keys/voc.pretalx.key.vault b/data/backup/keys/voc.pretalx.key.vault
new file mode 100644
index 0000000..603b206
--- /dev/null
+++ b/data/backup/keys/voc.pretalx.key.vault
@@ -0,0 +1 @@
+encrypt$gAAAAABgA_G01RaRiuVqHiGwZ9cpCL3P68ZxS39mSFQ8uUQHqJZkKAH6ejmI1u3yZ40jpbd51e603LlqeUaVr_h9X_yXxTCig9JWI7It0154l6rKVpgzZXzIuJMSzvl-gV8N44ZXwHV9dBeBrlh9W7m4qfxPjpa1Op3lrqxjp6kJ5z_LNF1I6VHYU-RzhngUdZ_UdN2ieILFxpYp1Tj3m911FcvQIvmLgb91ybamdxzuV4QADr2lFnA8gdJJI5j83PRaUyh9GI3CcMPxhsTt8Pho2BXak_kmAwhE6LEBK3Rxy9HaWh_igr6eG_EzCKNY3fjOTKsmN2bzisWjYt4w7nWaaMW4L8vHO1RuuMll7KsIfjo43toUfHa0Yaf46LzoQ9yH-7mkdTDGtWkS0LGZ6w1YfIYK_XPYy6FQ4tI98mqrHz0tCMDoyrmyAZ8PilKUx6nr85ctcAACAsHSrQ3TSZVapJxXUkK1Llqpc-ptlvsac2DPqA3kcR7EaxyHwzYQhB0WV-6hIOvw6mcEO4fy9NZt6bb3WjwIzuPJGaT0D-wn52p1vVBuI9DcA6AFiVHxgIx2uCJM_Dx12LrvPehsFc3c5Yeq5UzeDBp1KDFwn88DYHjZk0IfehM=
\ No newline at end of file
diff --git a/data/backup/keys/voc.pretalx.pub b/data/backup/keys/voc.pretalx.pub
new file mode 100644
index 0000000..961cdc2
--- /dev/null
+++ b/data/backup/keys/voc.pretalx.pub
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHLe2BWvhOVimWzOQFBbp/pzus5EIluoK4lLIz5LZRoQ kunsi@kunsi-t470
diff --git a/nodes/voc/pretalx.py b/nodes/voc/pretalx.py
index 49100ef..5dc41a2 100644
--- a/nodes/voc/pretalx.py
+++ b/nodes/voc/pretalx.py
@@ -5,6 +5,7 @@
 nodes['voc.pretalx'] = {
     'hostname': 'pretalx.c3voc.de',
     'bundles': {
+        'backup-client',
         'c3voc-addons',
         'pretalx',
         'postfix',
@@ -22,6 +23,9 @@ nodes['voc.pretalx'] = {
                 'gateway6': '2a01:a700:48d1::1',
             },
         },
+        'backup-client': {
+            'server': 'franzi-home.kunbox.net:2022',
+        },
         'nginx': {
             'vhosts': {
                 'pretalx': {