This weekend I built a prototype of using FedCM for IndieAuth! This gets rid of the need to enter your domain when logging in to websites using IndieAuth! Demo video and notes here: https://aaronparecki.com/2024/05/12/3/fedcm-for-indieauth
@aaronpk am I understanding that in order to use FedCM the RP must perform dynamic client registration with the IdP? I'm unsure of how the `client_id` comes to exist for the RP and not really getting it for the first-sign-in flow?