[RFE] lunr or other search engine support

[iranzo]

It would be great to include lunr or other search engine (out of the generated .json index) to avoid requiring integration with external sites.

Other themes like PaperMod allows to integrate the search directly (and of course, working on static sites)

[stevenroose]

Could you maybe rename the title to be more generally "Support local search without external party" or something? That's what I'm interested in: any solution that doesn't use a third-party service.