* large mbox/Maildir/MH/NNTP spool import (see PublicInbox::Import)
-* Allow NNTP and more of PSGI code to work without Xapian
-
* Read-only WebDAV interface to the git repo so it can be mounted
via davfs2 or fusedav to avoid full clones.
davfs2 needs Range: request support for this to be feasible: