Mildly ironic that the quickstart suggests starting with an unpinned action

gjtorikian/gh-actions-lockfile@v1

Presumably since it has to run first it must run unpinned?

Arguably, that's exactly the one action that will need to be hash-pinned, since all the consecutive actions will at least be verified against the lockfile.

Right, completely agree! By "must run unpinned" I meant "no way it can make itself run pinned, since it's already running"