Hello Kat! Yes I am one that enjoys #rust (see also #rustlang for some reason). Can't say any of my crates are popular, but I've written some for tunneling TCP/IP across #LoRA and #XBee SX long-range, low-power radios using PPP or tun/tap. (see lorapipe, xbnet). Currently working on an asynchronous Unixy job queueing system I hope to announce in a few days. Been using Rust at work for a few years now also.