Therefore, users of {project_name} can do Passkey registration and authentication by existing xref:webauthn_{context}[WebAuthn registration and authentication].
Both synced Passkeys and device-bound Passkeys can be used for both Same-Device and Cross-Device Authentication (CDA).
However, Passkeys operations success depends on the user's environment. Make sure which operations can succeed in https://passkeys.dev/device-support/[the environment].