Rust FUSE - Filesystem in Userspace.  Please note: this is a fork from @zargony's version, and I will be working from that going forward.  For my original version that was based on libfuse instead of reimplementing it in rust, see the mc-original-libfuse-based branch here (or the original repo which is now renamed at https://github.com/MicahChalmer/rust-fuse-mc-original).