↳ In-reply-to » @eaplmx CSS Battle has a passwordless login, I don't know the implementation but it basically send you and email where you click a link and you're in.

You can take a look at the library I’m using, here:
https://eapl.mx/webauthn/_test/client.html

And the implementation there:
https://eapl.mx/twtxt/login.html

What’s missing in the examples is having an identity tied to your Auth device (Hardware token or OS service like Microsoft Hello, Apple Keychain, Android Fingerprint). The explanation is long, but the abstraction is there. Your identity and private certificates are held for you by some ‘magic’ device.