C’mon, we’ve beaten that horse to death. Module INTEGRITY VALIDATION was 100% open and 100% free, with full documentation on how anyone could do it.
Here - let me help you: Sangoma Documentation
Sysadmin was always a bit of an oddfellow. People wanted a GUI to manage their network interfaces, and other system specific stuff, and were willing to pay a small amount of money to have it built into FreePBX. That’s it - and was many MANY years before Module Integrity Validation.
But c’mon. Give up on beating on module integrity validation - I REALLY went into battle to get that approved, and I went out ot my way to NOT limit it and to make sure all of the tools and documentation were right there in front of everyone who could possibly want it.
I even agreed (admittedly, later) that people wanted a way to do it without needing to get Sangoma installed, so Sangoma Documentation emerged.