diff --git a/keys/default.nix b/keys/default.nix
index 1f24491..49c11b7 100644
--- a/keys/default.nix
+++ b/keys/default.nix
@@ -28,6 +28,9 @@ rec {
     catvayor = [
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAA16foz+XzwKwyIR4wFgNIAE3Y7AfXyEsUZFVVz8Rie catvayor@katvayor"
     ];
+    cst1 = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKrijwPlb7KQkYPLznMPVzPPT69cLzhEsJzZi9tmxzTh cst1@x270"
+    ];
     ecoppens = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIGmU7yEOCGuGNt4PlQbzd0Cms1RePpo8yEA7Ij/+TdA" ];
     gdd = [
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICE7TN5NQKGojNGIeTFiHjLHTDQGT8i05JFqX/zLW2zc"