I'd just like to say the Eudyptula challenge is great fun, for people that wanted to get into custom Linux kernels. I always found FreeBSD a pleasure to compile kernels for, but even the couple of steps I've done so far have given me that 'ah, that's how it fits together' feeling, at least a bit. Highly recommended if you like hacking of kernels etc.<p>By the end of this I hope to have converted whoever is on the other end to Rust. Once I've converted myself.<p>http://eudyptula-challenge.org/ (I'm not affiliated)