Anyone familiar with Iron? http://ironframework.io/
Iron is an extensible web framework for Rust.
Description at http://ironframework.io/doc/iron/ suggests:
Iron is a high level web framework built in and for Rust, built on hyper. Iron is designed to take advantage of Rust’s greatest features - it’s excellent type system and its principled approach to ownership in both single threaded and multi threaded contexts.
Iron is highly concurrent and can scale horizontally on more machines behind a load balancer or by running more threads on a more powerful machine. Iron avoids the bottlenecks encountered in highly concurrent code by avoiding shared writes and locking in the core framework.
Useful for app developers perhaps??