In addition to the above store, lei can make read-only queries to
"externals": inboxes and external indices. An external can be
registered by passing a URL or local path to L<lei-add-external(1)>.
-For local paths, the external needs to be indexed with
+For existing local paths, the external needs to be indexed with
L<public-inbox-index(1)> (in the case of a regular inbox) or
L<public-inbox-extindex(1)> (in the case of an external index).
Add a remote external for public-inbox's inbox.
+=item $ lei add-external --mirror https://public-inbox.org/meta/ path
+
+Clone L<https://public-inbox.org/meta/> to C<path>, index it with
+L<public-inbox-index(1)>, and add it as a local external.
+
=back
=head1 SEARCHING