Comment by patchguard

Not so hard to believe tho. I work on a product that has parametrized feature flags. This means that, from a web interface, someone can say things like "activate feature X, on machines running operating system Y, at version Z, and are running product version W with license type Q". This is not a hard thing to build, and once you have it you can mix and match filters without being a software engineer or knowing how it works behind the scenes.