The operator manual's entry page under the mount — the site's anchor-aware forwarder.
The manual is one page per topic now, and this page maps a heading anchor to the topic
that carries it, in the browser (a fragment never reaches the server). Deep-linking
here is what keeps the surface's per-control help pointing at the right topic without
the surface holding a copy of the anchor index.
The operator manual's entry page under the mount — the site's anchor-aware forwarder. The manual is one page per topic now, and this page maps a heading anchor to the topic that carries it, in the browser (a fragment never reaches the server). Deep-linking here is what keeps the surface's per-control help pointing at the right topic without the surface holding a copy of the anchor index.