Bulgarian Wikipedia
Triggers: !wbg, !bgwiki, !wikibg
Try it
Kagi would openhttps://bg.wikipedia.org/w/index.php?search=roman+empire
Run @wbg in Kagi for Kagi's own results from bg.wikipedia.org only
URL pattern: https://bg.wikipedia.org/w/index.php?search=query
Searches bg.wikipedia.org, filed under Reference.