Setting Up a Private MediaWiki

I have a MediaWiki (1.32.0) running locally via WAMP on my Windows PC. I want to make the Wiki privately available online to people with a username/password that then allows people to see the Wiki.

So basically I have two big problems:

• I've never hosted a wiki before, but I have hosted other, less complicated sites (such as my old personal website on HostGator) - but these sites never required a "back end" to serve content
• I've never created a password blocked website. I'm thinking we'll just have one username/password combo, because we'll only allow 5-20 editors max on the Wiki; there will never be more than 1000 visitors simultaneously (and that's very, very generously high)

Any advice on either of these issues would be much, much appreciated.

Miraheze free wiki hosting will take care of this easily.