From the GitHub README:
"If you use the VMOS Pro Android 5.1 ROM for internal use, commercial profit or uploading to the app market without authorization, we will collect evidence and report to the police (copyright infringement) or prosecute. Anyone who reports unauthorized or illegal use of VMOS Pro Android 5.1 ROM code to develop products will be rewarded upon verification. We will keep the identity of the whistleblower confidential!"