diff --git a/hosts/chocolatebar/chocolatebar.nix b/hosts/chocolatebar/chocolatebar.nix
index eb6efd7..87fd57d 100644
--- a/hosts/chocolatebar/chocolatebar.nix
+++ b/hosts/chocolatebar/chocolatebar.nix
@@ -28,12 +28,12 @@ in
 
     age.secrets."vnc-key.pem" = {
       file = "${self}/secrets/vnc-key-chocolatebar.pem";
-      mode = "700";
+      mode = "400";
       owner = psCfg.user.name;
     };
     age.secrets."vnc-cert.pem" = {
       file = "${self}/secrets/vnc-cert-chocolatebar.pem";
-      mode = "700";
+      mode = "400";
       owner = psCfg.user.name;
     };
     pub-solar.sway.vnc.enable = true;
diff --git a/hosts/droppie/droppie.nix b/hosts/droppie/droppie.nix
index 0e2fadf..f16974d 100644
--- a/hosts/droppie/droppie.nix
+++ b/hosts/droppie/droppie.nix
@@ -39,5 +39,20 @@ in
       };
       wantedBy = [ "multi-user.target" ];
     };
+
+    services.ddclient = {
+      enable = true;
+      ipv6 = true;
+      domains = [ "backup.b12f.io" ];
+      server = "ddns.hosting.de";
+      use = "web, web=http://checkip6.spdyn.de/, web-skip=''";
+      passwordFile = "/run/agenix/dyndns-droppie.key";
+    };
+
+    age.secrets."dyndns-droppie.key" = {
+      file = "${self}/secrets/dyndns-droppie.key";
+      mode = "400";
+      owner = "root";
+    };
   };
 }
diff --git a/secrets/dyndns-droppie.key b/secrets/dyndns-droppie.key
new file mode 100644
index 0000000..d4f7e99
--- /dev/null
+++ b/secrets/dyndns-droppie.key
@@ -0,0 +1,27 @@
+age-encryption.org/v1
+-> ssh-rsa kFDS0A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+-> ssh-ed25519 7Wns0A aKiZ8iw+Ub5rByBef0apOn6lG5Bv6tzFCiBu3DN6sSg
+58+9kySg3ajO7E5V87b/qRu9axpu2hQUuY/cVTt2YdI
+-> ssh-rsa wVtlwQ
+RbrfuwS5zQzL9yMWFDSnWj9cQFLirTH37Xf79Dis2CJIDd83vmlmGNY5x1aPpZoZ
+J6XDhibGTJc02DYuNVIE1IXm0x9tc6Z9PTT+WiAFt1JuKHguXTWLRMM9HmyvWWDg
+bFsRDAcYup+SK5d+ME+XooDGueC822rAjkGIRHNSCimGwuLpDRKqyyVfYA+dcfiP
+EoYH7x4S09jYRr1C5EkbraLbm1vijc5ikJw3b42KKbyo3wDwKga+Vk2nl2AtgjZp
+KipZlyjs+IjMRXX5IBpgoRtXcvHuidsOSc+guRo0ihF9MbzRc/Tt2g0V7t3KjeT0
+SJDLmHOos2RKTmx06aidDg
+-> Dz(k-grease ~FF p m)E{J3E
+7Igp3pclCAzAmeky5cPqlIzcITT+0jvieQe7ruSxRYRYqpYU7tMQFmHuNUahp+BP
+MzOYiM+PIQmn
+--- IC9SI76EjaFZxQ5odEeIv49n/O8uOdpM6LE1Z7dtHg4
+l%�u���E�\���?2\&�wG&@��W�~9"��^�Ɔ����o�n^�����x��OI��uO��21c*�m�%�)�#�جe�I�6�A/i
\ No newline at end of file
diff --git a/secrets/secrets.nix b/secrets/secrets.nix
index 65b6ed9..68b238d 100644
--- a/secrets/secrets.nix
+++ b/secrets/secrets.nix
@@ -8,6 +8,9 @@ let
   chocolatebar-host = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINZT3QrKugNTWNOwYziQnxrT5zFqWQDafWjScDuIpMhN root@chocolatebar";
   chocolatebar-user = "ssh-rsa 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 ben@chocolatebar";
 
+  droppie-host = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBDuXuPPDXTyJgy4JRwbKcPbawvVB1Il2neyRWb4O5sJ root@nixos";
+  droppie-user = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCnYTlTmHCl6LOkexqRR9LqjOoFgt9TQ4VzHQGRHJMzF/AGcDRoqC+pBLFSTzRb5/ikAOsb32XHyKVg4nNdJeQshO11QtDmkCB02D/XcIXxnNQ5A8CztT2az5xJtbbWSdamMnHBLcqLiwoLmXbERpdlt8jNqMHrz+bjCUGYVAFSfc/WdIs6EATJ1eF0VFxv7nUh4qhgStABSwhNsnoYOC/DOBSA9aBP1f5Fz9QHUioPTGi2hRwbTbtFUvTrymPpWVFRApa1zvGXcr4YUCm7ia1ZlZKzRpsPkwLxb8Omm4bGmR0cAVwVhVRySnhpCTwbIBLyw+H8PvKWBBba1NAKyMij root@droppie";
+
   allKeys = [
     bbcom
 
@@ -31,6 +34,13 @@ let
     chocolatebar-host
     chocolatebar-user
   ];
+
+  droppieKeys = [
+    bbcom
+
+    droppie-host
+    droppie-user
+  ];
 in
 {
   "keyfile-biolimo.bin".publicKeys = biolimoKeys;
@@ -42,5 +52,7 @@ in
   "vnc-cert-chocolatebar.pem".publicKeys = chocolatebarKeys;
   "vnc-key-chocolatebar.pem".publicKeys = chocolatebarKeys;
 
+  "dyndns-droppie.key".publicKeys = droppieKeys;
+
   "mopidy.conf".publicKeys = allKeys;
 }