Every server's home page carries a feed auto-discovery link — the standard <link rel="alternate"> in the page head, pointing at that server's everyone feed. Point a feed reader at the home page of rss.chat, or demo.rss.chat, or your own install, and it finds the feed by itself, no hunting for the URL. The address is filled in per-instance by a new home-page macro, [%feedUrlEveryone%], so the same template serves every server correctly. Work by DW.
The home page now announces its own feed
github.com/scripting/rss.chat/blob/main/server/code/worknotes.md