Documentation for mobile custom components

Is there any documentation available for developing and supporting custom components in mobile?

I’ve seen things like mobileRenderer methods, differences in the way that componentAcceptor would work (componentAcceptor not supported in mobile), etc. but can’t find any documentation on how to properly build components on mobile including comparing mobile/desktop features/support.

I can dig through the code and figure this all out but documentation would make things much easier.  

I can’t seem to find any docs - do they exist?

Ugh.  They do not. 

Ugg is right :frowning:

Are they planned?  ETA?  

On a related note, is there a way to mark a component pack regarding which modes it supports?  Posssibly a setting in the builders.json or some other avenue?  Would be ideal to be able to provide metadata regarding supported features in addition to which components are in the actual pack, etc.