diff --git a/README.md b/README.md
index 91cfcd6..75857ad 100644
--- a/README.md
+++ b/README.md
@@ -43,22 +43,24 @@ claim that version `0.1.0` has been published or tagged.
 
 [`ansible-role-dnd-pipeline`](https://gitea.maximumdirect.net/eric/ansible-role-dnd-pipeline)
 is authoritative. Make and review role changes there, then import the reviewed
-commit; do not edit `roles/pipeline` directly.
+commit; do not edit `roles/pipeline` directly. The selected commit or immutable
+tag must be pushed to the authoritative repository before collection assembly.
+Replace `PUSHED_COMMIT_OR_TAG` below with that remote revision.
 
 Initial import:
 
 ```sh
-pipeline_commit=$(git -C ../ansible-role-dnd-pipeline rev-parse HEAD)
+pipeline_revision=PUSHED_COMMIT_OR_TAG
 git subtree add --prefix=roles/pipeline \
   https://gitea.maximumdirect.net/eric/ansible-role-dnd-pipeline.git \
-  "$pipeline_commit" --squash
+  "$pipeline_revision" --squash
 ```
 
 Subsequent update:
 
 ```sh
-pipeline_commit=$(git -C ../ansible-role-dnd-pipeline rev-parse HEAD)
+pipeline_revision=PUSHED_COMMIT_OR_TAG
 git subtree pull --prefix=roles/pipeline \
   https://gitea.maximumdirect.net/eric/ansible-role-dnd-pipeline.git \
-  "$pipeline_commit" --squash
+  "$pipeline_revision" --squash
 ```