After installing the latest nightly build if you see a "Supermesh" button on your node's screen, it means it's detected a local supernode. 
Clicking on that button will take you to your supernode's mesh status screen so you can view all the services available on the network. 
This behavior is defaulted on [enabled], but can be disabled in Advanced Configuration. 
[Else] Your local network will appear unchanged on your localnode.