Getting rid of websockets would help a lot. But you still might not be able to have standalone nodes. You might still need a cluster of nodes with a master and slaves due to the federated nature of lemmy. Such that only one node at a time can handles federation events with other servers. I don't know enough about the protocol to know if that is the case or not. Just as an example I'm thinking of situations where one node gets a federation event for example for a post, then a different node gets a federation event with some sort of change to that post, and handles it faster than the first node. That event would then fail because the post hasn't been created yet.