Implementing a SaaS module in Orchard Core 

We appreciate all the hardwork done by the Orchard project team to bring us this very beautiful and useful framework. However we need a polished presentation as this attempt at presentation is a failure. The back and forth madness is not helping to sell this project in the best light possible for it to achieve its potential with early adoption. The presentation needs to be clear, organised and simple to follow but it's far far from that

This is a great module - I don''t see an OrchardCore.SaaS module in the code repository. Was this module ever completed or implemented as a first class feature of OrchardCore?

Is there some tutorial or example of how to use or implement programmatically a Taxonomy field? Thanks in advance.

How can I enable my custom module by default (in code) ?