Backend

"Just send them an email" is one of those sentences that sounds like a five-minute task and turns into a week. The React part is trivial. The hard part is that email is a deceptively deep backend system with deliverability, templates, and reputation — and none of it belongs in your frontend. Here's where the real work actually is.

You don't have to write the server. But the shape of the contract between your React app and the backend — REST, tRPC, or a BFF — decides how much of your frontend is real work versus glue code. Here's the part of the backend that's actually yours.