This is the choice of backend installers+integration we've decided to offer:

**Backend**

- A Realy installation offers an expanded feature set, such as:

- a full RESTful API that covers all the core Nostr protocol

- SSE streaming over HTTP

- elegant handling in low-bandwidth networks

- maximizing your ability to integrate with other apps, hardware, and protocols

- GRAIN comes along with an advanced document database (MongoDB)

- StrFry is a very mature, performant relay

- Nostr-relay-tray is a lightweight, popular personal relay

- Nostr DB is a fast storage, for those who don't want a full relay integrated.