Minimum viable GNS deployment

Hello,

I'm interested in trying out GNS as a name system for an application I'm
making. I have played around a little bit with Gnunet, but I'm still very
new to it and I still have a lot to learn about its architecture and
configuration.

I understand that Gnunet runs many services that have a hierarchical
dependency relationship. I was wondering two things:

What is the minimum set of services needed to run a viable GNS peer?

...and...

What is the best way to configure Gnunet to only run those services needed
for GNS?

Kind regards,

Chris Joel