One delivery a server; BookWyrm 0.9.3 in the pasture

An activity now goes once to each server, to its shared inbox when it has one, for the accounts a post names, answers
or quotes as for its followers, as Mastodon delivers (a circle post excepted: each member's copy names that member).
BookWyrm took the same post twice when one copy reached its shared inbox and another the named account's inbox at once.
SharedInboxTests checks a reply to a follower's post goes once.

BookWyrm joins the pasture (peers/bookwyrm.sh: its image on the shared Postgres and Redis, gunicorn and a Celery worker,
its user, book and statuses made in its Django shell). scenarios/bookwyrm.sh: follows both ways, a review, a comment and
a quotation reaching alice as BookWyrm's pure posts, her like, boost and reply landing there, her post naming bwuser and
bwuser's like and reply, a deletion, the unfollow and statistics: 20 checks. GoToSocial (64), Mastodon (57) and Misskey
(35) still pass.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

docs/INTEROP.md

@@ -753,6 +753,20 @@ PeerTube's own instance account announces each new video too, which we drop: nob
 follow only PeerTube-like channels and accounts, never a persona. It checks the `Host` header against its own name,
 without a port, before it gives out its OAuth client.
 
+### BookWyrm 0.9.3
+
+- Its statuses are `Review`, `Comment` and `Quotation` about a book (`inReplyToBook`) for other BookWyrms, and "pure"
+  `Article`s and `Note`s (the book named in the text) for everyone else, chosen by the recipient server's NodeInfo:
+  PrivaPub gets the pure ones.
+- It keeps nothing of others' but what concerns a book or one of its accounts (a reply to its statuses, a mention).
+- WebFinger finds a local user only under the username its signup gives it, `localname@domain`.
+- It took the same post twice when one copy reached its shared inbox and another the named account's inbox at once.
+  Since 2026-10-05 PrivaPub delivers once a server, to its shared inbox, as Mastodon does.
+- **Pasture evidence (2026-10-05, `tools/pasture/scenarios/bookwyrm.sh`):** 20 checks pass: follows both ways; a
+  review, a comment and a quotation reach alice; her like, boost and reply land there; her post naming bwuser lands, and
+  bwuser's like and reply reach her; a deletion; the unfollow; statistics. BookWyrm has no client API, so the scenario
+  acts in its Django shell, as its views do.
+
 ### Ghost 6.67 and its ActivityPub service 1.2.14
 
 - A publication is one actor, `@index@<site>` (`/.ghost/activitypub/users/index`), served by a separate service