Most likely the entire HBO streaming service wouldn’t have taken off, because they offered little to no avenues to consume their content to an increasingly no-cable subscription generation. It’s entirely likely that HBO would’ve died out along with traditional TV.
Have to setup port forwarding to make it available outside your network.
I tried running it off my main PC for awhile, but it’s kind of a pain and impacted my gaming sessions. Moved it onto a $400 Lenovo server I got off eBay to great effect. Used unRAID to setup a simple server for it. Lots and lots of guides out there for it with a great community. Have since upgraded beyond that server, but it was a great start.