diff --git a/kartei/tv/hosts/ru.nix b/kartei/tv/hosts/ru.nix
new file mode 100644
index 000000000..334df5d07
--- /dev/null
+++ b/kartei/tv/hosts/ru.nix
@@ -0,0 +1,24 @@
+{
+  ci = true;
+  nets = {
+    retiolum = {
+      ip4.addr = "10.243.13.42";
+      aliases = [
+        "ru.r"
+      ];
+      tinc.pubkey = ''
+        -----BEGIN RSA PUBLIC KEY-----
+        MIIBCgKCAQEAr4xgpXPr/OGrLO5vwur35esesbAwREwShGJf9btt65UQXst090tD
+        GWev8Yfi3Mr241r1TG7zpW3Idh5nth2yhzVvqGc9m6QmK27v2MKpb+ppjOKab7RL
+        1KfdBAwjdrWdL2xO3XAYOUljxWoIV4VKX8kEBvjJEDOwl/u+g5mB3yLWebtIT7Wk
+        EneMU6wvCVKhOPeqyXmbqO/+j6+bqxkKP2/5hHcX3a91+15YbR3SvREK2rUm9stx
+        Rc3kmGUO/DiGK6MmUmt+qieGo/4vheK8hij57dY0uXFIC7U680QzV7jsUmtlKGBL
+        PoK/Xn6TLLG6nozgmF+q8esYyaYQFrwU2QIDAQAB
+        -----END RSA PUBLIC KEY-----
+      '';
+      tinc.pubkey_ed25519 = "Eg9l+RxFSNrQ9RkTd8tSkoTIG2m7zhQpjUJBWJRft1J";
+    };
+  };
+  secure = true;
+  ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIcNClgsey79WzdEQs/8qkLMHzc1SCU/MqyMerPcUi8X root@ru";
+}