matchhostfsowner VS flint

I wrote a portable solution for the user ID mapping problem: https://github.com/FooBarWidget/matchhostfsowner

I'm at the verge of releasing version 1.0 of MatchHostFsOwner, a solution for the Docker filesystem owner matching problem. MatchHostFsOwner is my first serious Rust project. It's an entrypoint program to be used in Docker containers. Rust's error handling idioms force me to take all possible error conditions seriously, while also encouraging me to have proper error messages for each error condition. I use rust-musl-builder to generate statically-linked Linux binaries that work on all Linux distros.

I'm working on a solution based on strategy 1 (matching the container's UID/GID with the host's). This solution already works, and I've already deployed it in a few of my own projects, but isn't very well-documented yet. I'm also working on more automated tests to guarantee that it's rock-solid. Would you be interested in testing it and giving feedback once it's in a more ready state?

I'm currently taking a short break from adding new features to Malachite, in order to rewrite the FFT multiplication code. I'll be testing an implementation based on FLINT's FFT code, written by William Hart. It should be faster than the current GMP-based implementation, which will give Malachite a speed boost overall, since multiplication is used almost everywhere.