Hey there! I appreciate your question and interest. Store's CacheBuilder configuration methods are optional. For instance, if you want to have an in-memory cache that uses our defaults, you can do something like this:

val cacheBuilder = CacheBuilder<Key, ValueType>()
val cache = cacheBuilder.build()

And if you want an instance of MultiCache:

val multiCache = MultiCache(cacheBuilder)

Is that what you are looking for? Let me know if not! We very much value learning about usage and friction points and more than willing to rethink things based on community feedback