This is a great way to find servers, but I don’t see how i can use it to find specific communities. Let’s say I wanted to see if a community has been created that discusses the book series The Wheel of Time. Is there a good way to look for this, within all the servers?

Exhausting is definitely the word for it. One day I’d love to do some intercontinental biking in Europe, hitting as many countries as I can. Meaning very likely doing this distance many days in a row! This is a nice little proof of concept.

Why are those mutually exclusive? The code is open source, and your added books are private. This is presumably a goodreads without the social aspect.

Then make an instance yourself, easy peasy