Releasing Source Code & Setup Info

First off, I'm crushed that the server is going away. It is truly a sad day.
In the message, it included the statement: "However, we will still be publicly providing everything needed in order to setup your own “Nostalrius” if you are willing to. Today is also the day where Nostalrius will start being community-driven in the truest sense of the word, as we will be releasing the source code, and anonymized players data (encrypting personal account data), so the community as a whole will decide the form of the future of Nostalrius."
While I do not have the resources to meet this mission, I would like to setup a test server to get smarter about how these work. So how would I get started in doing so?
Best wishes and thanks in advance.

In the message, it included the statement: "However, we will still be publicly providing everything needed in order to setup your own “Nostalrius” if you are willing to. Today is also the day where Nostalrius will start being community-driven in the truest sense of the word, as we will be releasing the source code, and anonymized players data (encrypting personal account data), so the community as a whole will decide the form of the future of Nostalrius."
While I do not have the resources to meet this mission, I would like to setup a test server to get smarter about how these work. So how would I get started in doing so?
Best wishes and thanks in advance.