Am I wrong or is fulcro frontend only though? You wouldn’t get access to any server resources so you still need to manage syncing state with the server. Or am I wrong about that?
Yeah you were mistaken, it's a full stack design. They recommend https://github.com/wilkerlucio/pathom for the connection. It's GraphQL done right, you write data "resolvers" on the backend, you declare very flexible graph queries on the front end -> this populates client DB and then fulcro uses that to render frontend.
Highly recommend reading through this section: https://book.fulcrologic.com/#FullStack