+ (done for most git blob retrievals, Xapian needs work)
+
+* HTTP(S) search API (likely JMAP, but GraphQL could be an option)
+ It should support git-specific prefixes (dfpre:, dfpost:, dfn:, etc)
+ as extensions. If JMAP, it should have HTTP(S) analogues to
+ various IMAP extensions.
+
+* scalability to tens/hundreds of thousands of inboxes
+
+ - inotify-based manifest.js.gz updates
+
+ ...