This [guide](https://andreneves.xyz/p/set-up-a-nostr-relay-server-in-under) is now two weeks old and some aspects are not entirely accurate. [GitHub](https://github.com/Cameri/nostream) has all the steps that's needed.
Discussion
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Let me know if you need any extra help with these. I'm running nostream and followed the linked guide and then contributed to the GitHub docs so might have the right context to help.