[btbytes]

What does "cooked-in" mean in this context. Never heard of this expression before ;)

[nsomaru]

Would suggest that the more common idiom is 'baked in'

[abrowne]

It's part of the main program, not an extra or add-on. (Just as a flavoring can be cooked as part of a dish rather than be added as an extra topping.)

[coldtea]

Built-in instead of third-party.