Looking at: https://github.com/eclipse-vertx/vertx-auth/blob/master/vertx-auth-webauthn/src/main/java/io/vertx/ext/auth/webauthn/impl/WebAuthnImpl.java#L193-L198 if you set for example Transports to only supporting "NFC" or BLE, you can register a authenticator using USB. Upon further login's it would fail, but it seems odd that you can register your authenticator using a un-supported transport. Is this expected behaviour to fill a specific niche?