I see nilch as slightly more about being simplistic and not having many features that are unnecessary. I do share many of the values and benefits with searxng (and really love their work!), however this is also about my own specific desire for something that is clean and has very little that is unnecessary.

You don't need to touch any of the "unnecessary" features in SearXNG, it's as simple as any search engine, just write your query into the input and look at the results