That's so cool, I didn't even know Passkeys were available to use already. Does anyone know of a good resource / tutorial / example / best practices on buildin

That's so cool, I didn't even know Passkeys were available to use already. Does anyone know of a good resource / tutorial / example / best practices on building login/signup systems in web apps with Passkeys? Also, what's browser support like? I'd love for some simple system to just replace PassportJS and all those confusing systems.