Domain proxy - manual?

I have just set-up Ubuntu server 17.10, installed snappy and the nextcloud snap. This was all very smooth and easy which was a relief.

However - I want to run some other web services on different (sub)domains on the machine. I would normally set up Nginx in front to proxy to different services and handle SSL authentication.

Given how smooth and user-friendly the process of setting-up nextcloud with Let’s Encrypt ssl was I wondered whether there is an idiomatic way to do this with snappy or whether I just need to configure nginx manually as normal.