Help with cache-domains-wolfssl package?

Looking at the repo's, there are two different "cache-domains" config file formats. One where the server IP's are set up and the different services refer to the names of the IP servers. Another just has the different services with a description and a reference to a file with domains listed in them.

Which one do I use or how am I supposed to combine them?

Are there any plans to make a Luci front end to interact with the cache-domain's packages?

Are there any "dummy" guides for using it? And if so, is there a dummied down version of that, as that might be more helpful to me?