-* command-line tool (similar to mairix/notmuch, but solver+git-aware)
-
-* consider removing doc_data from Xapian, redundant with over.sqlite3
- It's no longer read as of public-inbox 1.6.0, but still written for
- compatibility.
-
-* share "git cat-file --batch" processes across inboxes to avoid
- bumping into /proc/sys/fs/pipe-user-pages-* limits