When deploying your application into e.g. Azure there are lots of configurations that allow adding or removing features. A good example would be XP vs XM.
We have the situation where we don't use buckets, we don't use xDB and we don't need shared session - a pretty light setup! What else does Sitecore need behind the scenes that relies on an index?
Is it possible to configure things so that you don't need any search indexes available? The reason being it would save us time during our provisioning and it would save a fair amount of cloud costs.
I seem to recall a conversation that in the future lucene may no longer be supported so I'd rather be able to specify
search:define="None" rather than something like lucene.