This falls on deaf years but I say it every chance I get.

I would pay a significant premium to install MacOS on a machine without violating their ToS.

I would pay a premium to be able to install macOS on a cloud VM that I can scale arbitrarily large (and to arbitrarily many instances, presumably with premium for each). I'd like to do scalable CI and builds for macOS.

(Also, if someone can find a maintainable method for it, I'd love to support someone who maintains a cross-compiler toolchain that targets macOS, making it possible to build Rust and C apps for macOS without having macOS installed. But that's not a complete substitute for having an actual macOS cloud build server, on which the compiled applications can run as part of the build process.)

This toolchain can build C, C++ and Rust programs for macOS on Linux and FreeBSD. You'd need an Apple developer account to download the SDK.

https://github.com/tpoechtrager/osxcross