Unbound is a recursive DNS, not an authorative. An authorative DNS server is needed for adding your own records. I suggest using bind, which can be both a recursive and an authorative.

I’ve used openshot quite a bit.

I do occasionally swap to Google if I can’t find anything with qwant, but I usually can’t find anything with Google either then.

Maybe your search terms are too broad? Or not broad enough?

I’ve ditched Google. I use Qwant for searching. It’s about the same as Google in terms of results, I think.