Gokrazy: A pure-Go userland for Raspberry Pi 3 appliances
This is great!  I think it could have uses far beyond the Raspberry Pi.  As someone who's worked in the consumer electronics industry for years, I think we desperately need to rethink our approach to Linux-based electronics with respect to both the userland and the primary application.  A legacy-free framework written in a safe language could go a long way to improving our currently lousy reputation with respect to security and reliability.  (Yes, fresh code will have fresh bugs even in a safe language -- but it's a start!)  I'm also keeping my eyes open for similar ideas using Rust.