Making Confer.to Work on Linux with TPM-backed WebAuthn

Confer.to is an end-to-end encrypted AI chat service. Unlike typical AI assistants where your conversations feed into corporate training data, Confer uses the WebAuthn PRF extension to derive encryption keys directly from your fingerprint. No passwords, no server-side key storage—just your biometric tied to a hardware-backed credential. There&rsquo;s a catch: this requires a platform authenticator…