[simcop2387]

That would likely need to be built for every version of MacOS that's ever been made, it's easier to emulate the hardware and provide the key it's looking for. That part alone shouldn't violate any ToS or laws on it's own, as long as the key isn't provided by the emulator/vendor. That will still allow you to still virtualize MacOS on the actual hardware (as is required by the license of the OS) without having a hacky patch in place that could lead to crashes or failures to boot whenever an update is applied to the guest.

disclaimer: I am not a lawyer, this is not legal advice, etc.

[bitwize]

It is illegal under the DMCA to circumvent an effective copy protection measure, or to traffic in devices intended primarily for such circumvention. The law sets a very, very low bar for what counts as "effective". Basically, if you get around any obstacle to unauthorized copying or use, or show others how to get around it, you have committed a felony. Everyone who has repeated the device key here has committed a felony.