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.
Restart community after plugin install
I have installed one plugin and it asks to restart the community after install. I am afraid to restart as I doubt it might result into some code break or such issues. Is it safe to restart? I am new to community management, prompt response will be highly appreciated.
Yes it's normally safe to restart. After installing and activating a plugin, make sure you do a "rebuild and restart".
@PitaJ thanks. it helped.