A side effect of Markata DidYouMean is that we are able to implement some rudimentary search based on slug, title, tags, and description.
I made a video of the early work on using this side effect to search for content on markata.dev.
This was first implemented to solve 404 pages giving users a way to try to find the page that they tried to access. But it turned out to be a decent way to search through the docs.