Alexa, set PC brightness to zero/20/50/100 percent
This is probably a very ambitious idea, but still:
Unfortunately the CAM app isn't working for most people, which means that communication between the NZXT server and the application has to be reworked. Once that is fixed a simple Amazon Alexa Skill shouldn't be too hard. Log in with your NZXT account and be able to change the brightness of your RGB LEDs which are connected to the Smart Hub.