refactor: Rename keys

modules/nixos/sops.nix

@@ -10,7 +10,7 @@ in {
       keyFile = mkOption {
         description = "Path to an Age key file.";
         type = types.path;
-        default = "/persist/key.txt";
+        default = "/persist/sydnix-key";
       };
       secrets = mkOption {
         description = "Secrets passed directly to sops-nix.";