FRP in Rust, still a bit early
medium.com
medium.com
Rustaceans are called that for a reason, and that usually involves some level of PTSD from multithreaded C++ security audits or worse. Pick your poison.
(It's also being used in production outside of Mozilla, last I counted we had over 50 companies on our "Friends of Rust" page.)
Learning it was a really cool experience because it made me discover a lot of low-level things I wasn't aware of, and ah the same time it was much easier to grasp than C for instance, where you have the same memory issues but they aren't caught at compile-time with a nice compiler error.