We do offsite installations and upgrades, message firstname.lastname@example.org
Of course, we do have docs so you should try it yourself just back up everything first!
Edit: to answer your original question, we do plan on building an upgrade button into our hosting plans control panel - right now we just upgrade customers manually. It's probably impossible (or hard) to make an app upgrade itself via acp, we would need to make the acp a standalone application (we've toyed around the idea, but not worth the development time)
Subcategories are presently only supported by the vanilla theme, and even then it's all on the backend of things. The Child categories don't acutally show inside of the parent categories...yet.
This should be a simple tweak though, as @a_5mith mentioned to me the other day.
I'm using NodeBB as an interface for an app, more like a crowdsourcing hub. The forum is okay, but sometimes the communication is more dynamic and people have to either speak on the phone, use other apps or meet in person.
For new forums or for forums with small user base, a cross-forum chat room would be very engaging.
For the UI I'm imagining something like DC++ looked like in the old days.
This idea fits in different scenarios. At least in mine it does. The chat room would be an extension of the forum.
How do you find the idea?