Hi there, I'm from Italy so excuse me if you see any error in my grammar or spelling. I just wanted to know if NodeBB is a free software or not. I really can't understand. 
I see that on the website you say "Free for Devs". What does this means exactly? Thank you in advance for any reply!
@Dakoom said:
So there are only three-four themes aviable for it, right? Or am I missing something?
? 
@AOKP said:
@Nicolas would love to. But file uploads are disabled here and I do not remember the link where I found the file anymore.
All what I can say is, that I've got it from a website for open source sounds.
Probably this one: https://freesound.org/.
Ok, solved! Now I have it installed. So there are only three-four themes aviable for it, right? Or am I missing something?
Ok, I installed Git, now the command works. Currently cloning... and finally installing dependencises... and I received these erros:
It also ask me now for a redis database name. What should I write for it?
npm WARN deprecated lodash@0.9.2: lodash@<2.0.0 is no longer maintained. Upgrade to lodash@^3.0.0
npm WARN deprecated lodash@1.0.2: lodash@<2.0.0 is no longer maintained. Upgrade to lodash@^3.0.0
bufferutil@1.2.1 install /Users/Dakoom/NodeBB/node_modules/bufferutil
node-gyp rebuild
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
CXX(target) Release/obj.target/bufferutil/src/bufferutil.o
SOLINK_MODULE(target) Release/bufferutil.node
utf-8-validate@1.2.1 install /Users/Dakoom/NodeBB/node_modules/utf-8-validate
node-gyp rebuild
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
CXX(target) Release/obj.target/validation/src/validation.o
SOLINK_MODULE(target) Release/validation.node
heapdump@0.3.7 install /Users/Dakoom/NodeBB/node_modules/heapdump
node-gyp rebuild
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
CXX(target) Release/obj.target/addon/src/heapdump.o
SOLINK_MODULE(target) Release/addon.node
EDIT: Ok, installed. Then I suppose that when I entered the db name it automatically created it. Ok, I have it installed and I'll try it a little bit! 
Thank you all for your suggestions!
Oh ok, then now I'm downloading and I'l linstall Git. Then I'll rety to send again that command. I'll let you know!
That's great! Thank you for the info! Now I'm stuck into the install process (check my other thread in Tech Support).
So I installed node and homebrew as per docs, I entered the previous commands and now I'm stuck at: git clone -b v0.9.x https://github.com/NodeBB/NodeBB.git. The terminal is stuck here. Maybe is it donwloading it? Excuse me but I'm pretty noob on this type of things. I never used these technologies.
Have you considered to use a "knock knock" sound for notifications?
Thank you for your replies guys. So I'm trying to install it on localhost, just to test it out. I never used both node or homebrew and obvisouly this software, so let's see what I get! 
Would be great a simple thread with a list of all the plugins and aviable themes, no? What do you think?