++ Allow a custom location for .notmuch
+
+ The notmuch index is currently saved in .notmuch under the user's
+ Maildir and there's no configuration option to change that.
+
+ This is problematic with both tools that sync Maildirs and with IMAP
+ servers that consider .notmuch a Maildir subfolder (e.g. dovecot)
+
+ A better solution would be to add a configuration option for this so
+ that it can be put e.g. in ~/.notmuch