For it to be useful for `trail`, the `prebuild` hook has to run
after both pagespecs and sorting work. The other use case
-I've seen for a similar hook was for Guiseppe Bilotta to
+I've seen for a similar hook was for Giuseppe Bilotta to
sort an inline-of-inlines by mtime of newest post, but that
can't be the same hook, because it has to run after pagespecs
work, but before sorting.