Python cryptography, Rust, and Gentoo

"Requiring software that never existed to build software for real systems (like s390x) is preposterous and missing the $ of the market."

Rust supports the s390x as a Tier 2 platform, Gentoo just doesn't have packages for it yet. However, Rust does not support the s390 and neither has Linux since 2015. Besides, if a company bought an IBM mainframe then they shouldn't be making *any* complaints about support from open source projects.

"I'm not going to take a stance on if this is right or wrong, but it's actively harmful against users."

Realistically it isn't very many users. If a platform is so anemic that it doesn't have an LLVM backend and isn't implementing one, then it's functionally abandoned.