You can sign in using your nsec and follow groups or choose sign up and do it as a new user. https://manyworlds.social . A new user can sign up, and they go straight to Groups to choose their interests and then choose groups and are immediately taken to their feed. This is the groups API implemented on a Coracle install, but it can be easily implemented into the login flow of any client. We bypass choose relays and other steps to get a new user straight to an interesting feed as quickly as possible. had a concept of using a vending machine which would be better than an API, so we will work on that after we work out some kinks to the Groups front end. We should have the front end available in a few hours. People will be able to create groups and add users.