messense

Needs LLVM 18.

> * armv7-unknown-linux-gnueabihf (yes, this does actually work...I think notice in the project's README.md is out of date) To clarify, I have implemented some workarounds for these caveats in `cargo-zigbuild`...

I'll do this in July after CentOS 7 EOL when bumping glibc version.

Never tried, I'm not sure if it builds and runs. But I'm fine with adding support for it as long as it doesn't bloat the toolchain size by a lot.

It doesn't compile on Windows due to the use of `nix` crate.

Thanks for the PR, note that you also need to update examples to pass CI checks.

Adding support for `frozenset` in https://github.com/PyO3/pyo3/pull/3632

> Thank you! Do you think it's possible to add support of [MappingProxyType](https://docs.python.org/3/library/types.html#types.MappingProxyType)? As I understand it's only way to have read-only dictionaries without adding third-party libraries. Should be possible...

Blocked on https://github.com/rust-ammonia/ammonia/issues/183

Pull requests are welcome!