People who are interested in learning about operating systems have a lot of topics to absorb, but the very first barrier that gets in people's way is that you need to be able to build the software. If you can't build it, you can't make changes. If building it is painful, you'll find other things to do with your time.

The NetBSD Project has a build system that goes far beyond what many other projects implement. Come to this talk about learn about
build.sh and the features available that make multi-architecture and embedded development environments a breeze with NetBSD.

NetBSD website: http://www.NetBSD.org/