It would be nice if Hoarder were the primary bookmarker, and I could feed part of the list (in particular ones with a special tag) to my ArchiveBox instance. This could be done by publishing one or more RSS feeds, as LinkDing (and apparently Wallabag) does. Would be great if the feed depended on query parameters to filter, e.g. by tag(s).

This FR is the flip side of the #202 issue.