We can't rely on the fact that the test won't run fast enough such that both `created_at`s are the same time. This ensures the subsequent signup happens after the initial one and that the database doesn't overwrite the initial one.
Zed Server
This crate is what we run at https://collab.zed.dev.
It contains our back-end logic for collaboration, to which we connect from the Zed client via a websocket after authenticating via https://zed.dev, which is a separate repo running on Vercel.