@sharletsings123 have you run ./nodebb setup? It should have created a config.json file. Can you copy or take a screenshot of the complete output of ls /opt/nodebb? There should be a lot more directories and files than that.
Sorry to take time to reply the ./nodebb setup had errors so I wanted to delete the directories but I restarted again its fine for me ill say you if I have any problems through a DM or here!!
@meetdilip: Yes, of course it depends on the different sites. It should be an optional, configurable feature. Since it seems to be not yet implemented in NodeBB, I woud like it to be considered a feature suggestion.
About choosing Discourse or NodeBB, Discourse has already very nice features like this self-moderation. However, for some other points that can be important depending on the site, NodeBB gives more options. For example, Discourse has explicitly discarded pagination as a possible option, therefore infinite scroll must be used in all cases. Also adamantly discarded are hierarchical categories, and only one level of subcategories is allowed in all cases.
On the other hand, NodeBB seems more open to give options for users' suggestions, such as optional pagination, unlimited subcategory levels, flexible theming, etc. So, this project probably will use NodeBB.
You could either install node.js into your box ( if possible ) and accommodate NodeBB into it. Or, get a new VPS, install NodeBB on it with meeting server requirements. Link it to your choice of sub domain.
for http://retropie.org.uk/forum/ we have around 3-5k page views per hour. Running with mongodb, redis, and nginx as a front end proxy with currently 4 nodebb processes (I recently reduced it from 6 and it seems to manage well). nginx serves up the static content.